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Editorial archive;

18-Bit, 1.6Msps, Unipolar SAR ADC with 96.5dB SNR (07 February 2012)
The LTC2369-18 is a low noise, low power, high speed 18-bit SAR ADC. It has a 0V to VREF pseudo-differential unipolar input range, operates from a 2.5V supply, consumes only 18mW and achieves ±2.5LSB INL max with no missing codes. Read more... More..

36V, 5A, 2-Quadrant CVCC Step-Down µModule Regulator (31 January 2012)
The LTM8052 is a constant-voltage, constant-current step-down µModule regulator with integrated switching controller, power switches, inductor and support components, providing precise positive & negative current limits. Read more... More..

48-Channel LED PWM Generator with 12-Bit Resolution (17 January 2012)
The LT8500 has 48 independent channels each of which has an individually adjustable 12-bit PWM register and a 6-bit ±50% correction register. All controls are programmable via a simple serial data interface. Read more... More..

Monolithic synchronous step-down regulator (10 January 2012)
24V, 15A monolithic synchronous step-down regulator with differential output sensing and clock synchronisation. More..

60V Current Sense Amplifier Offers Adjustable Fault Flags (10 January 2012)
The LT6109 is a complete high side current sense device that incorporates a current sense amplifier, an integrated precision 400mV voltage reference and two comparators. It precisely extracts the shunt voltage, amplifies it, and translates it to ground. Read more... More..

Octal 14-Bit, 125Msps µModule Low Power ADCs (04 January 2012)
The LTM9011 is a simultaneous sampling 14-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. AC performance includes 73.1dB SNR and 88dB SFDR. Read more... More..

300MHz to 4GHz 3.3V Dual Active Downconverting Mixer (20 December 2011)
The LTC5569 is optimised for diversity and MIMO receiver applications that require low power and small size. Each mixer includes an independent LO buffer amplifier, active mixer core, and bias circuit with enable pin. Read more... More..

Reducing output ripple noise (13 December 2011)
Tiny 1.5W isolated low noise DC/DC µModule converters include transformer. More..

Octal I2C Voltage, Current, and Temperature Monitor (13 December 2011)
The LTC2991 is a highly integrated solution that incorporates a 14-bit ADC, 10ppm/°C voltage reference and I²C digital interface and provides submillivolt voltage resolution and 1% current measurement. Read more... More..

Multicell battery stack monitor (06 December 2011)
The LTC6803 is a 2nd generation, complete battery monitoring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface. Read more... More..

Isolated 12-Port PoE/PoE+/LTPoE++ PSE Controller (22 November 2011)
The LTC4270/71 is an isolated 12-port PSE controller chipset designed for use in IEEE 802.3at (PoE+) Type 1 and Type 2 compliant PoE systems enabling significant cost savings. Read more... More..

60V Battery Charging Controller & Power Manager (15 November 2011)
The LTC4000 is a high voltage, high performance controller and power manager that converts virtually any externally compensated DC/DC power supply into a full-featured battery charger. Read more... More..

Op amp drives SAR ADCs to true zero on a single 5V supply (26 September 2011)
LTC6360 is an amplifier that can drive to 0V while maintaining high linearity on a single +5V supply. More..

Monitor provides accurate internal & remote measurements (12 September 2011)
Linear Technology’s LTC2991 is an 8-channel I²C temperature, voltage and current monitor for 3V and 5V systems. More..

48-channel PWM generator (08 August 2011)
Linear Technology’s LT8500 is a pulse width modulation (PWM) generator with 48 independent channels. More..

72VIN, Six Output DC/DC SEPIC µModule Regulator (05 July 2011)
The LTM8008 is a six-output DC/DC µModule regulator with guaranteed operation from -40°C to 150°C. It includes a 3V to 72V input SEPIC converter and six linear regulators all housed in a small 15 x 15 x 2.82mm LGA package. Read more... More..

26.8dBm IIP3 dual broadband RF mixer (17 June 2011)
Linear Technology’s LTC5569 is a dual high performance RF mixer. More..

High Efficiency Dual 8A or Single 16A DC/DC Regulator (17 June 2011)
The LTM4628 is a µModule regulator containing two step-down 8A DC/DC converter circuits with the inductors, MOSFETs and all supporting components in a 15x15x4.32mm LGA package. It has an input voltage range of 4.5V to 26.5V and two outputs each with a range of 0.6V to 5.5V. Read more... More..

High Voltage, Bidirectional Current Sense Amplifier (15 June 2011)
LT1999 is a high speed precision current sense amplifier designed to monitor bidirectional currents over a common mode range from -5V to 80V. It senses current via an external resistive shunt and generates an output voltage, indicating magnitude and direction. Read more... More..

Offline Isolated Flyback LED Controller with Active PFC (07 June 2011)
The LT3799 is an isolated LED controller with active power factor correction, specifically designed for driving LEDs from a universal input range of 90VAC to 265VAC. It is optimised for applications requiring 4W to over 100W of LED power. Read more... More..

DC/DC Controller with Digital Power System Management (27 May 2011)
The LTC3880/-1 is a dual output synchronous step-down DC/DC controller with I2C-based PMBus interface for DPSM. It combines best in class analogue switching regulator performance with precision mixed signal data conversion for ease of power system design and management. Read more... More..

Boost controller boasts wide temperature range (24 May 2011)
No RSENSE 60V boost controller operates over a -40°C to 150°C junction temperature range. More..

18-Bit, 1.6Msps, Low Power SAR ADC with 101.2dB SNR (24 May 2011)
The LTC2379-18 is a serial, high speed 18-bit, 1.6Msps SAR ADC that achieves 101dB SNR and -118dB THD while supporting a fully differential ±5V input range. It has max INL of ±2LSB with no missing codes and guaranteed specs from -40°C to 125°C. Read more... More..

32V, 2A µModule Li-Ion/Polymer Battery Charger (17 May 2011)
The LTM8061 is a high efficiency 32V, 2A µModule standalone Li-Ion battery charger that provides a constant-current / constant-voltage charge characteristic and is optimized for one and two-cell packs, with fixed float voltage options of 4.1V, 4.2V, 8.2V and 8.4V. Read more... More..

RF-to-Digital Receivers Reduce Size, Cost & Time-to-Market (10 May 2011)
The LTM9004 and LTM9005 are two breakthrough RF-to-digital µModule receivers that integrate the key components for 3G and 4G base station receivers (WCDMA, TD-SCDMA, LTE, etc.) and smart antenna WiMAX base stations. Read more... More..

Precision Triple Supply Monitor with Power-Fail Comparator (04 May 2011)
The LTC2911 is a low power, high accuracy triple supply monitor with a reset timeout that may be selected with an external capacitor or set to an internally generated 200ms. Read more... More..

Harsh automotive environments demand high performance power conversion (28 April 2011)
Automotive and heavy equipment environments are very harsh for any type of electronics. Bruce Haug looks at a new power conversion device capable of holding its own in such environments More..

µModule LED String Drivers with 40V Transient Protection (27 April 2011)
The LTM8042 is a complete µModule Boost LED Driver specifically designed to drive LEDs up to 1A, while the LTM8042-1 drives up to 350mA. It combines a boost power topology with a unique current loop to operate as a constant-current source. The PWM input provides 3000:1 LED dimming. Read more... More..

Wide Temp, High Efficiency Buck-Boost DC/DC Regulator (18 April 2011)
LTM4609MP is a 36VIN high efficiency switching mode buck-boost power supply, system-in-a-package that is guaranteed and tested over -55°C to 125°C. It delivers precision regulation in military, avionics, heavy industrial machinery and harsh environments. Read more... More..

Multicell battery stack monitor (18 April 2011)
High voltage battery stack monitor advances hybrid/electric vehicle battery management systems. More..

400mA DC/DC Converter for Energy Harvesting Applications (11 April 2011)
The LTC3105 is a high performance, synchronous boost converter that incorporates maximum power point control and starts up with inputs as low as 250mV. It is ideal for harvesting energy from high impedance sources such as PV cells, thermoelectric generators and fuel cells. Read more... More..

15A DC/DC µModule Regulator Delivers 50% More Power (05 April 2011)
The LTM4627 is a complete 15A output high efficiency switch mode DC/DC power supply in a LGA package that includes the switching controller, power FETs, inductor and compensation components. Read more... More..

LED driver (22 March 2011)
60V step-down LED driver for three independent LED strings of 100mA LEDs offers 10,000:1 true colour PWM dimming. More..

Matched Dual-Channel 6GHz RMS Power Detector (22 March 2011)
LTC5583 is a 40MHz – 6GHz dual channel, matched RMS power detector offering over 55dB isolation. It accurately measures forward power, reverse power and VSWR and is suitable for measurement with LTE, EDGE, W-CDMA, CDMA2000, TD-SCDMA and WiMAX. Read more... More..

Complete 6A DC/DC Regulator with Tracking (15 March 2011)
LTM4618 is a complete 6A switching mode DC/DC power supply in a 9×15×4.32mm LGA package. Included are the switching controller, power FETs, inductor and all support components. It supports an output voltage of 0.8V to 5V set by an external resistor. Read more... More..

Voltage Controlled Silicon Oscillator (08 March 2011)
The LTC6990 is a precision silicon oscillator with a programmable frequency range of 488Hz to 2MHz that can be used as a fixed-frequency or voltage-controlled oscillator (VCO). It is part of the TimerBlox family of versatile silicon timing devices. Read more... More..

A new and ideal solution for EMI (28 February 2011)
As the demand for energy efficiency increases, more electronics are being designed with switching regulators in place of linear regulators. Greg Zimmer, Senior Product Marketing Engineer at Linear Technology Corporation explores this subject. More..

DC/DC Regulator Delivers 15A from Inputs Down to 1.5V IN (25 February 2011)
The LTM4611 µModule is a complete switch mode DC/DC point-of-load regulator capable of generating its own 5V N-channel MOSFET gate drive for very efficient voltage conversion from 3.3V or less at up to 15A. Read more... More..

Ultralow Voltage Step-Up Converter and Power Manager (22 February 2011)
The LTC3109 is a highly integrated DC/DC converter ideal for harvesting surplus energy from extremely low input voltage sources such as thermoelectric generators (TEGs) and thermopiles. Read more... More..

1µA Precision Series Voltage Reference (15 February 2011)
The LT6656 is a small precision SOT23 voltage reference that operates on only 850nA of supply current with an initial error of less than 0.05% and a guaranteed temperature drift of less than 10ppm/ºC. This combination of precision and ultralow power is ideal for portable, wireless and remote devices. Read more... More..

16 bit 125 Msps ADCs reduce power to 185 mW (01 February 2011)
Linear’s families of low power ADCs dissipate around half the power of other 16 bit solutions. More..

SOT23 reference for automotive (07 December 2010)
Linear’s SOT23 voltage reference offers 10ppm/°C drift while limiting noise to 1.6ppm. More..

Sub 1µA IQ battery charger provides pack protection (16 November 2010)
Linear Technology’s LTC4071 is a tiny shunt battery system for Li-Ion/Polymer batteries. More..

Synchronous boost controller eliminates heat sink (08 November 2010)
Linear’s DC/DC controller replaces the boost diode with an N-channel MOSFET. More..

RF-to-digital uModule receivers (25 October 2010)
Linear Technology introduces the LTM9004 and LTM9005, two RF-to-digital uModule receivers. More..

Video security isn’t a gamble (20 October 2010)
Even before the heightened awareness brought on by threats of terrorism, many public and private institutions had already began to incorporate video security into critical infrastructure. More..

2-cell supercapacitor chargers (19 October 2010)
Linear has launched the LTC3625 and LTC3625-1; the latest in a family of 2-cell supercapacitor chargers. More..

6GHz RMS power detector (21 September 2010)
LTC5587 is the first 40dB dynamic range 6GHz RMS detector integrated with a 12bit serial A/D converter. More..

20V nanopower switching regulator (31 August 2010)
Linear Technology’s LTC3388 is an ultralow quiescent current synchronous buck converter. More..

uModule regulator (10 August 2010)
4.5V to 26.5V input 6A DC/DC uModule regulator with tracking and phase-lockable frequency synchronisation. More..

Isolated RS485 µModule Transceiver Integrates Isolated Power (27 July 2010)
The LTM2881 is a galvanically isolated full duplex RS485/RS422 µModule transceiver that guards against large ground-to-ground differentials and common mode transients. It requires no external components and breaks ground loops by isolating the logic level interface and line transceiver using internal inductive signal isolation. Read more... More..

60V, 4A DC/DC µModule regulator in small package (12 July 2010)
LTM8027 is a 4A system-in-a-package DC/DC step-down power supply that includes an inductor, power switches, switching regulator and support components in a 15 x 15 x 4.32mm LGA plastic package. It's capable of operating from a 60V supply without input protection. Read more… More..

Paralleling phases (06 July 2010)
Three phase step-down DC/DC controller targets high current rails. More..

Virtual Remote Sense DC/DC controller (11 May 2010)
The latest product from Linear Technology is the LT4180; a Virtual Remote Sense DC/DC controller. More..

45V, 1.5A LED driver (27 April 2010)
Linear Technology’s H-grade version of the LT3517 is a high side current sense DC/DC converter. More..

Independent Multicell Battery Stack Fault Monitor (13 April 2010)
The LTC6801 is a multicell battery monitoring IC incorporating a 12-bit ADC, a precision voltage reference, sampled comparator, and a high voltage input multiplexer. It can monitor as many as 12 series connected battery cells for overvoltage, undervoltage, and overtemperature conditions. Read more... More..

Power Tracking 2A Battery Charger for Solar Power (06 April 2010)
The LT3652 is a complete monolithic step-down battery charger that operates over a 4.95V to 32V input voltage range. It provides a constant-current/constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. Read more... More..

Wireless device power architectures go green (26 March 2010)
The thermal efficiency of power management ICs is a key factor in its green credentials as Tony Armstrong explains. More..

Streamlined solar cell-based battery charging (25 March 2010)
Solar power is a “hot” topic. Applications requiring large panels or arrays of panels have occurred in residential and commercial buildings. Now however, as Steve Knoth reports, technology is emerging for solar panels to have a role in power generation in off grid applications. More..

Triple Output, Low Voltage DC/DC µModule Regulator (24 March 2010)
The LTM4615 is a complete triple-output DC/DC µModule regulator system containing two 4A switch mode regulators and one 1.5A very low dropout (VLDO) linear regulator all with adjustable output voltages. Suitable for powering the new generation of lower voltage multiple-rail 65nm and 45nm digital ICs. Read more... More..

Ultralow Voltage Step-Up Converter and Power Manager (23 March 2010)
The LTC3108 is a highly integrated DC/DC converter for harvesting and managing surplus energy from low input voltage sources such as thermoelectric generators, thermopiles and solar cells. It steps up from input voltages as low as 20mV and is a power management solution for wireless sensing and data acquisition. Read more... More..

High Input, Boost, Flyback, SEPIC and Inverting Controller (10 March 2010)
The LT3758 is a wide input range, current mode, DC/DC controller which is capable of generating either positive or negative regulated output voltages. It can be configured as either a boost, flyback, SEPIC or inverting converter and is a highly versatile DC/DC controller for many types of power supply designs. Read more... More..

36V, 3A DC/DC µModule Converter Regulates 0.8V to 24V (03 March 2010)
The LTM8025 is a complete µModule regulator system that includes a DC/DC controller IC, power switches, inductor, compensation circuitry and input and output bypass capacitors. It is well suited for applications such as 24V industrial, 28V medical and avionics, as well as 12V communication systems. Read more... More..

Energy harvesting gets a boost (26 February 2010)
Despite progress being made in energy harvesting technology, there have still gaps preventing its more widespread acceptance. One of these gaps, argues Tony Armstrong, has been filled by a new DC/DC boost converter. More..

Octal PMBus Power Supply Monitor & Controller with EEPROM (24 February 2010)
The LTC2978 is a Power Supply Monitor and Controller for digital management of up to eight 0V to 6V power supplies. This all-in-one digital power management solution drastically simplifies the design challenges of configuring multiple DC/DC converters and reduces the component count typical of traditional analog control. Read more... More..

Highly Integrated 6-Channel Portable PMIC (17 February 2010)
The LTC3577 is a highly integrated multi-function power management IC for portable single cell Li-Ion/Polymer battery applications. It includes a linear PowerPath manager with automatic load prioritization, a battery charger, an ideal diode, input overvoltage protection and numerous other internal protection features. Read more... More..

DC/DC controller operates from -55°C to 125°C (16 February 2010)
Linear Technology has a new high reliability (MP) grade version of the LT3845. More..

UltraFast, Programmable, Low Noise 5A LDO (03 February 2010)
The LT3070 is a digitally programmable linear regulator with the lowest dropout voltage, lowest noise and fastest transient response of any monolithic 5A LDO currently available. Ideal for powering FPGAs, DSPs, ASICs, microprocessors, sensitive communication supplies, server/storage devices and post-buck regulation applications. Read more... More..

0.4GHz to 2.7GHz High Linearity Upconverting Mixer (27 January 2010)
The LT5578 is a new wide bandwidth active upconverting mixer that delivers high dynamic range performance from 400MHz to 2.7GHz, supporting all of the allocated LTE broadband wireless services. The single-ended LO input and RF output ports simplify board layout and reduce system cost. Read more... More..

Digital Predistortion Receiver Simplifies Basestation Design (19 January 2010)
The LTM9003 is a wideband RF-to-digital receiver subsystem that includes a high performance 12-bit, 250Msps ADC, a bandpass filter, intermediate frequency (IF) amplifier and a high linearity RF downconverting mixer. The integrated µModule receiver significantly reduces board space and development time. Read more... More..

16bit Octal SPI DAC Achieves ±4LSB INL (Max) (12 January 2010)
The LTC2656 is a 16bit octal rail-to-rail DAC with a precision integrated reference that offers ±4LSB INL maximum over temperature, a factor of 3x better than the nearest octal competitor. The 0.1% gain error and ±2mV offset error ensure that it remains accurate near the supply rails and has a wider effective output range. Read more... More..

High Voltage 2 Amp Monolithic Li-Ion Battery Charger (05 January 2010)
The LT3650 is a complete monolithic single-cell Li-Ion/ Polymer battery charger that operates over a 4.75V to 32V input voltage range with a charge current that is programmable and dynamically adjustable up to 2A. The device's switchmode architecture minimises power dissipation without compromising board space. Read more... More..

14-Bit, 125Msps Dual-Channel IF/ Baseband Receiver Subsystem (24 December 2009)
The LTM9002 is a dual IF/baseband receiver subsystem that includes a high performance dual 14-bit A/D converter sampling up to 125Msps, anti-aliasing filters, fixed gain differential ADC drivers and 12-bit, trim DACs. It significantly reduces the board space and development time for wireless base stations. Read more... More..

USB Power Manager with Li-Ion Charger & Dual Buck PMIC (15 December 2009)
The LTC3554 is a micropower multifunction power management integrated circuit (PMIC) solution for portable Li-Ion/Polymer battery-based applications. It integrates a USB-compatible linear PowerPath manager, a stand-alone battery charger, two high efficiency synchronous buck regulators and pushbutton control. Read more... More..

Ultralow Power Converter with Dual Half-Bridge Switches (30 November 2009)
The LT8415 is a low noise micropower boost converter with two integrated complementary MOSFET half-bridges, integrated power switch, Schottky diode and output disconnect circuitry. It’s unique design scheme requires only 10.5uA of quiescent current, which is further reduced to 0uA in shutdown. Read more... More..

Quad IEEE 802.3at Power Over Ethernet Controller (30 November 2009)
The LTC4266 is a 4-port PoE+ controller for Power Sourcing Equipment (PSE) required to provide IEEE 802.3at (25.5W) or proprietary higher power levels. It delivers lowest-in-industry heat dissipation by utilizing low Ron external MOSFETs and 0.25O sense resistors, eliminating the need for expensive heat sinks. Read more... More..

High Efficiency, High Voltage 20mA Step-Down Converter (24 November 2009)
The LTC3632 is a 50V input-capable synchronous buck converter that delivers up to 20mA of continuous output current. It operates from an input of 4.5V to 50V with protection up to 60V and requires only 12uA of quiescent current, making it ideal for automotive and industrial 4mA to 20mA control loop applications. Read more... More..

Boost, Flyback, SEPIC and Inverting Controller (18 November 2009)
The LT3757 is a wide input range, current mode, highly versatile, DC/DC controller for boost, flyback, SEPIC and inverting power supply applications. It is capable of generating either positive or negative regulated output voltages and has two voltage feedback error amplifiers and reference voltages. Read more... More..

Regulating in cold crank conditions (18 November 2009)
Linear Technology’s LT3689 is a 700 mA, 36 V input step-down switching regulator. More..

Surge Stopper with Fault Latchoff (10 November 2009)
The LT4356-3 surge stopper protects loads from high voltage transients. It has overcurrent protection and inrush current limiting and is ideal for high availability systems and intrinsic safety apps. It regulates the output during an overvoltage event by controlling the gate of an external N-channel MOSFET. Read more... More..

Converter for medical systems (09 November 2009)
36VIN, 3A DC/DC uModule converter regulates 0.8V to 24VOUT. More..

Ultralow Power ADC Reduces Digital Feedback (03 November 2009)
The LTC2262-14 is a sampling 14-bit A/D converter designed for digitizing high frequency, wide dynamic range signals that dissipates only 149mW. It is perfect for demanding communications applications with AC performance that includes 72.8dB SNR and 88dB SFDR. Ultralow jitter gives excellent noise performance. Read more... More..

Synchronous step-down LED driver (03 November 2009)
Linear Technology’s LT3743 is a synchronous step-down DC/DC converter. More..

200mA Two-Terminal Programmable Current Source (28 October 2009)
The LT3092 is a programmable 2-terminal current source that requires only two resistors to set an output current between 0.5mA and 200mA. It has a wide voltage range and is stable without input and output capacitors, offering high DC and AC impedance thus allowing operation in intrinsically safe applications. Read more... More..

Extremely Fast, Wide Input Step-Down DC/DC Controllers (19 October 2009)
The LTC3878/79 are high efficiency no RSENSE synchronous step-down DC/DC controllers that allow very low duty cycles, ideal for high step-down ratios and an extremely fast transient response. They are well suited for distributed power supplies, embedded computing and other point-of-load regulation applications. Read more... More..

Ultralow Noise EMC Compliant 36V, 2A DC/DC µModule (13 October 2009)
The LTM8032 is an ultralow noise DC/DC regulator system-in-package designed to meet the radiated emissions requirements of EN55022. It includes the switching controller, power switches, inductor, filters and all support components with an output voltage of 0.8V to 10V and a switching frequency of 200kHz to 2.4MHz. Read more... More..

7V, 500mA Synchronous Buck-Boost DC/DC Converter (06 October 2009)
The LTC3534 provides extended battery run time in handheld apps. It can deliver 500mA of output current to a regulated output that is above, below or equal to the input using a single inductor and is for 3/4 cell Alkaline/NiCad/NiMH or single cell lithium apps which must maintain a constant output voltage. Read more... More..

Silence of the amps (28 September 2009)
Ultralow EMI DC/DC regulator system meets EN55022 Class B Standard. More..

15V, 5A Synchronous Step-Down Regulator (23 September 2009)
The LTC3605 is a high efficiency, 4MHz synchronous buck regulator that uses a constant frequency controlled on-time, current mode architecture. It delivers up to 5A of continuous output current at voltages as low as 0.6V with minimum thermal derating. Input of 4V to 15V makes it ideal for dual-cell Li-Ion applications. Read more... More..

Medical power (22 September 2009)
Dual output synchronous DC/DC controller draws only 170uA in battery-powered systems. More..

Racal Acoustics leads the way in Military communications technology (16 September 2009)
Racal Acoustics is a world leader in military communications systems, supplying high quality, state-of-the-art audio products designed to operate in the harshest military environments. Read more... More..

36V, 1A µModule LED Driver and Current Source (15 September 2009)
The LTM8040 is a fixed frequency 1A step-down DC/DC µModule regulator designed to operate as a constant current source. It monitors the output current to provide accurate current regulation - ideal for driving high current LEDs. High accuracy from 35mA to 1A allows a wide dimming range over 2.5V to 13V. Read more... More..

Complete component set in regulation (11 September 2009)
DC/DC µModule regulator features two switch-mode and one linear regular. More..

High Voltage 2 Amp Monolithic 2-Cell Li-Ion Battery Charger (09 September 2009)
The LT3650-8.2 is a complete monolithic, high-voltage, 2-cell Li-Ion/Polymer battery charger that operates over a 9V to 32V input voltage range (11.5V minimum start-up voltage). It provides a constant-current/constant-voltage charge characteristic, with maximum charge current externally programmable up to 2A. Read more... More..

36VIN, 34VOUT High Efficiency Buck-Boost DC/DC µModule (02 September 2009)
The LTM4609 is a high voltage, high efficiency DC/DC regulator system in a surface mount LGA package. It regulates an output voltage from a variable input greater than, less than or equal to the output voltage and operates from 4.5 to 36VIN and regulates an output from 0.8 to 34V delivering an output power up to 120W. Read more... More..

Solar charger (01 September 2009)
Linear Technology has launched the LT3652; a solar power directed monolithic buck battery charger IC. More..

2.2MHz, Dual 36V, 700mA Step-Down DC/DC Converter (25 August 2009)
The LT3509 is a dual channel current mode PWM step-down DC/DC converter with two internal 36V, 1A power switches. Each channel delivers up to 700mA with efficiencies up to 88%. Its input range of 3.6V to 36V, with transient protection to 60V makes it ideal for regulating power from sources in harsh environments. Read more... More..

Triple Buck Regulator with Dynamically Adjustable Outputs (17 August 2009)
The LTC3569 is a triple channel, high efficiency 3MHz synchronous buck regulator that delivers 1.2A from one channel and 600mA from each of the other two. It has a constant frequency current mode architecture, operates from 2.5V to 5.5V and is ideal for single-cell Li-Ion/polymer, or multicell alkaline/NiCad/NiMH applications. Read more... More..

4-Channel 120mA LED Driver with ±1.5% Current Matching (11 August 2009)
The LT3599 is a 45V, 2.1MHz DC/DC boost mode converter designed to operate as a constant current LED driver for up to 40 white LEDs. From a 12V input it can drive up to four strings of LEDs, each with up to ten 120mA white LEDs in series while delivering efficiencies up to 90% and with 3000:1 True Color PWM dimming. Read more... More..

DesignBox - the forum for eco design (03 August 2009)
The Envirowise eco design team are pleased to announce the launch of our new innovative eco-design forum DesignBox. Join our monthly live chat and have your questions answered by industry experts from the world of design. Log on to chat about eco design challenges and find out how you can improve your resource efficiency. Read more... More..

A Micropower Step-Down Switching Regulator (17 July 2009)
The LT3682 is an adjustable frequency (up to 2.2MHz) monolithic buck switching regulator that accepts input voltages up to 36V with 60V transient ride through making it ideal for load dump and cold-crank conditions. Its Burst Mode® operation keeps quiescent current under 75uA in no load standby conditions. Read more... More..

Octal DACs Integrate 10ppm/°C Ref. in Tiny Packages (14 July 2009)
The LTC2636 is a family of octal 12-/10-/8-bit voltage-output DACs with an integrated, high-accuracy, low-drift 10ppm/°C reference in 14-lead DFN and 16-lead MSOP packages with a rail-to-rail output buffer and guaranteed monotonic - ideally suited for driving optical attenuators or setting current levels for laser diodes. Read more... More..

High Voltage Capacitor Charger Controller with Regulation (02 July 2009)
The LT3751 is a flyback controller designed to rapidly charge large capacitors to voltages as high as 1000V. It drives an external N-Channel MOSFET and is ideal for applications such as professional photoflash systems, RF security, inventory control systems and specialized high voltage power supplies. Read more ... More..

Wide Vin, Multi-Output DC/DC Converter with Controller (29 June 2009)
The LTC3101 is a complete power management solution for low power portable devices. It provides three high efficiency switching DC/DC converters which seamlessly transition from battery to USB/wall adapter. A synchronous buck-boost regulator provides complete flexibility allowing operation from various 1.8 to 5.5V power sources. Read more ... More..

New IC yields high performance two-terminal current sources (25 June 2009)
Current source design is a more difficult task than designing voltage regulators. Robert Dobkin discusses the ways in which the LT3092 can overcome the problems of two-terminal current sources. More..

High Power PD Controller for IEEE 802.3at PoE+ Applications (22 June 2009)
The LTC4265 is an IEEE 802.3af/802.3at compliant Power over Ethernet (PoE) interface controller for high-power Powered Device (PD) applications needing up to 25.5W. It has 2-Event Classification Recognition that is backward compatible with 802.3af and unlocks the next level of potential for today’s PoE applications. Read more... More..

High Efficiency I2C USB Power Manager & Li-Ion Charger (12 June 2009)
The LTC4099 is an autonomous I2C controlled, high efficiency power manager, ideal diode controller and full-featured Li-Ion/Polymer battery charger for portable USB powered devices such as media players, digital cameras, PDAs, PNDs and smart phones. It seamlessly manages power distribution from multiple sources. Read more ... More..

High Performance Broadband Active Filters & ADC Drivers (09 June 2009)
A new family of single and dual high performance, wide bandwidth lowpass active filter / ADC driver amplifiers provide cost-effective solutions in the smallest form-factor for challenging filtering applications in broadband wireless comms and signal processing equipment. Offering the widest selection of broadband active filters. Read more... More..

Dual Hot Swap Controller with I2C Compatible Monitoring (02 June 2009)
The LTC4222 Hot Swap controller allows two power paths to be safely inserted and removed from a live backplane. Using external N-channel pass transistors, board supply voltages and inrush currents are ramped up at an adjustable rate. An I2C interface and onboard ADC allows for monitoring of current, voltage and fault status. Read more ... More..

Ultralow Noise DC/DC uModule Regulators Meet SERDES (26 May 2009)
The LTM4606/12 ultralow noise DC/DC uModule™ regulators deliver low noise power by attenuating both radiated and conducted wideband harmonic energy. The LTM4606 has been verified by Xilinx Corp. demonstrating flawless high speed multi-gigabit-per-sec digital data transmission in SERDES and RocketIO™ applications. Read more ... More..

14-Bit, 125Msps Ultra-Low Power 1.8V ADCs (19 May 2009)
The LTC2261 is a sampling 14-bit A/D converter designed for digitizing high frequency, wide dynamic range signals. It is perfect for demanding communications applications with AC performance that includes 73.4dB SNR and 85dB SFDR, has ultralow jitter with excellent noise performance. Read more... More..

6GHz RMS Power Detector with 40dB Dynamic Range (11 May 2009)
The LT5581 is a broadband 6GHz RMS detector with 40dB dynamic range and low supply current of 1.4mA. It is ideal for a wide range of power monitor and control applications in portable and battery- powered wireless systems, cellular basestations, picocells and femtocells, fiber optic transmitters and instrumentation. Read more... More..

Battery Stack Monitor for Hybrid/Electric Vehicles (01 May 2009)
The LTC6802 is a highly integrated multicell battery monitoring IC that is capable of measuring up to 12 individual battery cells. Multiple LTC6802s can be stacked in series without optocouplers or isolators, for precision voltage monitoring of every cell in long strings of series-connected batteries. Read more... More..

Battery Stack Monitor for Hybrid/Electric Vehicles (22 April 2009)
The LTC6802 is a highly integrated multicell battery monitoring IC that is capable of measuring up to 12 individual battery cells. Multiple LTC6802s can be stacked in series without optocouplers or isolators, for precision voltage monitoring of every cell in long strings of series-connected batteries. Read more ... More..

Integrated and Compact Hot Swap Controller (20 April 2009)
The LTC4217 is a 2A integrated Hot Swap™ controller for protecting low power boards with load supply voltages from 2.9V to 26.5V. It allows a board to be safely inserted and removed from a live backplane by limiting the inrush current during power up. Read more ... More..

Crank it down (14 April 2009)
Step-down DC/DC converter suitable for high temperature applications. More..

Current Sense Amplifier Operates from -55°C to 150°C (09 April 2009)
The LT6107 is a Military Plastic grade (MP-grade) high side current sense amplifier specified for operation from –55°C to 150°C and is designed to meet the demands of automotive, military, industrial and other harsh environment applications. Read more... More..

LED Controller for High Current LED Applications (03 April 2009)
The LT3755 is a 60V, high-side current sense DC/DC converter designed to drive high current LEDs. Its 4.5V to 40V input voltage range makes it ideal for a wide variety of applications, including automotive, industrial and architectural lighting. Read more... More..

Battery Back-Up System Manager Saves Space & Power (31 March 2009)
The LTC4110 is an autonomous multi-chemistry, single chip, high efficiency flyback battery charge and discharge manager for server, memory backup, medical equipment, and high reliability system applications. This single IC with four operating modes saves significant board area. Read more... More..

Battery Management Architectures for Hybrid/Electric Vehicles (19 March 2009)
Next generation Electric (EV) and Hybrid Electric Vehicles (HEV) are pushing the development of new battery technologies. To minimise cost and maximise efficiency, vehicle system designers need to exploit the full usable battery storage capacity. More..

Buck-Boost regulator 98% efficient (24 February 2009)
High voltage DC/DC system also saves space More..

Ethernet power - new features as POE shifts up a gear (10 February 2009)
Alison Steer and Clay Stanford guide us through the Power over Ethernet standard, its progress, and what the benefits are. More..

DC/DC converter offers quiescent current of only 75uA (27 January 2009)
A 1A, 36V input step-down switching regulator with input transient protection up to 60V. More..

DC/DC switchmode regulator (20 January 2009)
The LTM8021, a complete DC/DC uModule regulator POL system is available from Linear Technology. More..

PoE interface controller (06 January 2009)
A high power PD controller addresses IEEE 802.3at PoE+ standard. More..

Digitally programmable IF VGA (23 December 2008)
Linear Technology has introduced the LT5554; a broadband digitally programmable gain IF amplifier. More..

2.5MHz, 36V Triple Monolithic Step-Down Regulator with LDO (22 December 2008)
The LT3507 is a triple channel current mode PWM step-down DC/DC converter with three internal 36V power switches and an LDO controller, all packaged in a 38-lead 5 x 7mm QFN package. One channel is capable of delivering up to 2.4A of output current while the other two can deliver 1.5A of continuous output current. Read more... More..

16-bit, 105Msps Serial Output ADC Conserves FPGA I/O Pins (16 December 2008)
The LTC2274 is a 105Msps, 16-bit A/D converter with a high speed serial interface that is designed for digitizing high frequency, wide dynamic range signals with an input bandwidth of 700MHz. The input range of the ADC can be optimized using the PGA front end while the output data is serialized to JEDEC JESD204. Read more... More..

Synchronous 600mA Step-Up & 400mA Step-Down Converters (09 December 2008)
The LTC3523/-2 combine a 600mA step-up DC/DC converter with a 400mA synchronous step-down DC/DC converter in a tiny 3 x 3mm package. The 1.2MHz/2.4MHz switching frequencies minimize the solution footprint while maintaining high efficiency. Both feature soft-start and internal compensation, simplifying the design. Read more... More..

Hot swap controller in QFN package (25 November 2008)
Linear Technology has launched a new dual Hot Swap controller. More..

10A, 32V Monolithic Synchronous Step-Down DC/DC Converter (25 November 2008)
The LTC3611 is a high efficiency, synchronous buck regulator that delivers up to 10A of continuous output current at voltages as low as 0.6V. It operates from an input voltage of 4.5V to 32V (36V ABS Max), making it ideal for applications with multicell Li-Ion, lead acid batteries or fixed voltage rails up to 32V. Read more... More..

Broadband active filters (18 November 2008)
Single and dual high performance, wide bandwidth lowpass active filter/ADC driver amplifiers launched. More..

High Efficiency USB Power Manager with 1A Regulator (17 November 2008)
The LTC3566 is a highly integrated power management and battery charger IC for Li-Ion/Polymer battery applications. It includes a high efficiency current limited switching PowerPath manager with automatic load prioritization, a battery charger, an ideal diode, and a 1A high efficiency synchronous buck-boost switching regulator. Read more... More..

Multi-cell battery monitoring (15 November 2008)
More..

8channel, 12bit, SAR 1.5mW ADC with I2C Interface (11 November 2008)
The LTC2309 is a low noise, low power, 8channel, 12bit successive approximation ADC with an I2C compatible serial interface. It includes an internal reference and a fully differential sample-and-hold circuit to reduce common mode noise that operates from an internal clock to achieve a 1.3µs conversion time and draws 1.5mW. Read more.... More..

16bit, 105Msps Low-Noise ADC Achieves 81.2dB SNR (05 November 2008)
The LTC2217 105Msps sampling 16bit A/D converter is for digitizing high frequency, wide dynamic range signals with input frequencies up to 400MHz; the input range is fixed at 2.75VP-P. It is for communications applications, with AC performance of 81.3dBFS Noise Floor, 100dB Spurious Free Dynamic Range and ultra low jitter. Read more... More..

High-Side Power Monitor Measures Current and Voltage to 80V (21 October 2008)
The LTC4151 high side power monitor operates over a 7V to 80V range and utilises an internal 12bit ADC to continuously measure current and voltage to give a true power reading. It replaces prior solutions that use costly current sense amplifiers with a separate ADC, a hot-swap controller with an ADC, or an ADC with a floating ground. Read more... More..

2 MHz, 600mA Synchronous Step-Up DC/DC Converter and LDO (13 October 2008)
The LTC3537 combines a high efficiency, 2.2MHz step-up DC/DC converter with an independent 100mA low dropout regulator (LDO). The step-up converter starts from an input voltage as low as 0.68V and contains an internal 0.4 Ohm switch and a 0.6 Ohm synchronous rectifier that disconnects from the output when disabled in shutdown. Read more... More..

Low Voltage Hot Swap Controller with Adjustable Current Limit (24 September 2008)
The LTC4218 allows a board to be safely inserted and removed from a live backplane. An internal high side switch driver controls the gate of an external N-channel MOSFET for supply voltages from 2.9V-26.5V. A dedicated version contains preset 12V specific thresholds and the standard model allows adjustable thresholds. Read more... More..

Multi-cell battery monitoring (23 September 2008)
Linear Technology moves into multi-cell battery monitoring with the LTC6802 IC. More..

IF/Baseband Receiver Subsystem Bridges RF & Digital Worlds (22 September 2008)
The LTM9001 is an integrated System in a Package (SiP) that includes a high-speed 16-bit A/D converter, matching network, anti-aliasing filter and a low noise, differential amplifier with fixed gain. It is designed for digitizing wide dynamic range signals with an intermediate frequency (IF) range up to 300MHz. Read more... More..

High Dynamic Range 3.8GHz Active Upconverting Mixer (15 September 2008)
The LT5579 is a high performance upconverting mixer optimized for frequencies in the 1.5GHz to 3.8GHz range. The single-ended LO input and RF output ports simplify board layout and reduce system cost. The mixer needs only -1dBm of LO power and the balanced design results in low LO signal leakage to the RF output. Read more... More..

Triple 800mA 2.25MHz Synchronous Step-Down Regulator (01 September 2008)
The LTC3545/-1 are triple, high efficiency, monolithic synchronous buck regulators using a constant frequency, current mode architecture. The regulators operate independently with separate run pins and the 2.25V to 5.5V input voltage range makes them well suited for single Li-Ion battery-powered applications. Read more... More..

MOSFET ideal diode controller (26 August 2008)
For low voltage applications, this ideal diode controller enables low loss ORing of power sources. More..

Dual 800/400mA, 1.2/2.2MHz Synchronous Boost Regulator (22 August 2008)
The LTC3527/-1 are dual high efficiency, step-up DC/DC converters in a space saving 16-lead 3mm x 3mm QFN package. Battery life is maximized with a 700mV start-up voltage and operation down to 500mV once started. The converters can be sequenced or started together. Read more... More..

High Efficiency USB Power Manager & Li-Ion Battery Charger (18 August 2008)
The LTC4098 is a high efficiency USB Power-Path controller and full-featured Li-Ion/Polymer battery charger. It seamlessly manages power distribution from multiple sources including USB, wall adapter, automotive, firewire or other high voltage DC/DC converters, and a Li-Ion/Polymer battery. Read more... More..

High Efficiency Switch Mode USB Power Manager (12 August 2008)
The LTC3556 is a highly integrated power management and battery charger IC for Li-Ion/Polymer battery applications. It includes a high efficiency current limited switching PowerPath manager with automatic load prioritization, a battery charger, an ideal diode, and three synchronous switching regulators. Read more.… More..

Serial Interface for data converters (06 August 2008)
Spectrum analysers can improve overall system performance with the capability to isolate the digital and analogue circuitry More..

Fast Response 2.7GHz, 60dB Mean-Squared Power Detector (05 August 2008)
The LT5570 provides accurate RMS power measurement of a 40MHz to 2.7GHz AC signal over 60dB dynamic range, even with a modulation crest-factor of up to 12dB. It offers best-in-class measurement accuracy of ±0.5dB over its full dynamic range. Read more... More..

DAC range grows (24 July 2008)
A 12bit/10bit/8bit I2C and SPI DAC range with integrated reference in 8pin TSOT23 packages has been launched by Linear Technology. More..

Step-Down DC/DC Controller Draws 30uA (17 July 2008)
The LTC3834/-1 synchronous step-down DC/DC controller with ultra low quiescent current draws only 30uA in sleep mode; ideal for preserving battery energy in "always-on" systems. Read more… More..

105V High Side Current Sense Amplifier with Zero Drift (15 July 2008)
The LTC6102 is the most precise high side current sense amplifier available. Maximum input offset voltage is only 10uV and it can accept differential sense voltages up to 2V. It is suitable in almost any application. Read more... More..

36V, 1A & 2A Surface Mount DC/DC uModule Regulators (15 July 2008)
The LTM8022-23 are 1A and 2A high voltage surface mount DC/DC uModule regulator systems that are complete DC/DC solutions with up to 36V (40Vmax) input voltage and up to 10V output voltage. They are pin-compatible making upgrading easy. Read more... More..

Micropower oscillators are precise (11 July 2008)
The LTC6930 low power precision silicon oscillators from Linear Technology are 99.91 per cent accurate to effectively manage power. More..

Precision Low Drift Low Noise Buffered Reference (01 July 2008)
The LTC6652 is a precision low noise series voltage reference with an initial accuracy of 0.05% and max voltage drift of 5ppm/°C. It offers excellent load and line regulation, and noise of only 2.1ppm. Ideal for precision data acquisition and medical instrumentation. Read more… More..

High Efficiency 36Vin, 24Vout Buck-Boost DC/DC µModule (23 June 2008)
The LTM4607 uModule regulator system can regulate an output voltage from a variable input greater than, less than or equal to the output voltage. For higher voltage systems with input of 4.5V to 36V it regulates an output of 0.8V to 24V with power output up to 190W. Read more.… More..

High Voltage Ideal Diode Controller Provides Higher Efficiency (17 June 2008)
The LTC4357 is a single high voltage ideal diode-OR controller that offers a simple low loss replacement to the Schottky OR-ing diodes in multiple, N+1 redundant, power supply applications and high availability systems. Read more.… More..

Surface Mount 1.1A LDO is Easily Paralleled Without Hot Spots (06 June 2008)
The LT3080 is a 1.1A 3-terminal LDO that may be easily paralleled to increase output current or spread heat in surface mounted boards. This new architecture regulator uses a current reference to allow sharing between multiple regulators. No need for heat sinks. Read more… More..

High Efficiency Buck-Boost DC/DC µModule without Hot Spots (02 June 2008)
The LTM4605 uModule regulator system can regulate an output voltage from a variable input greater than, less than or equal to the output voltage. It operates over an input range of 4.5V to 20V and supports an output of 0.8V to 16V with an output power up to 150W. Read more… More..

Battery manager saves space and power (28 May 2008)
A single chip battery flyback battery charge and discharge manager is for high-reliability applications. More..

Low Voltage I2C/SMBus Accelerator Improves Reliability (27 May 2008)
The LTC4311 is a Rise Time Accelerator for heavily loaded I2C/SMBus systems operating at bus speeds of up to 400kHz and at supply voltages from 1.6V to 5.5V. It increases reliability and offers many improvements over existing accelerators. Read more... More..

Dual Output, 2-Phase DC/DC Controller (20 May 2008)
The LT3742 is a dual output step-down DC/DC switching regulator controller that produces up to 30V for automotive and telecom systems. Read more ... More..

High Side Current Sense Amplifier Features Wide Input Range (13 May 2008)
The LT6105 is a micropower, precision current sense amplifier with a very wide input common mode range that extends from –0.3V to 44V with respect to V – and monitors unidirectional current via the voltage across an external sense resistor. Read more... More..

Small ADC excels at power saving (06 May 2008)
ADC for portable and space-constrained applications boasts 20 per cent power saving over nearest competitor. More..

I2C Quad Output Synchronous Step-Down DC/DC Regulator (06 May 2008)
The LTC3562 is a quad high efficiency 2.25 MHz monolithic synchronous buck converter with an I2C interface that can deliver dual 600mA and dual 400mA continuous outputs. Two regulators are externally adjustable and two are fixed output. Read more... More..

Triple channel current mode PWM step-down DC/DC converter released (29 April 2008)
Linear Technology has announced the launch of the LT3507; a 2.5MHz, 36V triple step-down DC/DC converter with LDO controller More..

16bit ADC family's 0.5uA shutdown current suits portable applications (24 April 2008)
Linear Technology has introduced a pair of 16bit delta sigma ADCs with 0.5uA (max) shutdown current in 3mm x 2mm DFN packages More..

16bit, 105Msample/sec serial output ADC conserves FPGA I/O pins (18 April 2008)
Linear Technology believes its 16bit, 105Msample/sec ADC establishes a new benchmark for digital communication between high speed ADCs and FPGAs. More..

SIP puts ZIP into 16 receiver design (18 April 2008)
High-sensitivity instrumentation technology benefits from development of components for wireless basestations. More..

36V 200mA Surface Mount DC/DC uModule Without Hot Spots (07 April 2008)
The LTM8020 is a complete 200mA, surface mount, DC/DC uModule regulator system with on-board switching controller, power switches, inductor, and all support components. Has input operating range of 4V to 36V and output range of 1.25V to 5V. Read more... More..

16-Channel LED Driver Drives up to 160 50mA LEDs (31 March 2008)
The LT3595 is a high performance LED Driver designed to drive sixteen independent channels of up to 10 LEDs at currents up to 50mA with 92% efficiency. Its multi-channel capability makes it ideal for large TFT-LCD backlighting applications. Read more... More..

Complete High Efficiency 8A Surface Mount DC/DC µModule (25 March 2008)
The LTM4608 is a complete 8A, surface mount, DC/DC uModule regulator system with on-board DC/DC controller, power switches, inductor compensation and input/output bypass capacitors that operates over an input voltage range of 2.375V to 5.5V. Read more... More..

Precision Dual CMOS Rail-to-Rail Input/Output Amplifier (04 March 2008)
The LTC6081/82 are dual/quad low offset, low drift, low noise CMOS operational amplifiers with rail-to-rail input/output swing. The 70uV maximum offset, 1pA input bias current and 1.3uVP-P 0.1Hz to 10Hz noise make it perfect for precision signal conditioning. Read more... More..

Power management ups runtime (26 February 2008)
Multi-function power management for Li-Ion/Polymer batteries maximises runtime. More..

Receiver bridges RF and digital (13 February 2008)
Sampling high dynamic range signals in RF applications relies on ADC capabilities as well as amplifier output and matching impedances. More..

New architecture for LDOs (08 February 2008)
The low drop out linear regulator is regaining popularity. Recent advances have given a new life to the LDO. More..

RF detection prepares for 4G (07 February 2008)
In terms of RF for wireless applications, Linear Technology (www.linear.com) is looking one step ahead, beyond 3G and on to 4G, with its LT5570 precision RMS [root, mean, square) signal detector. More..

DC/DC regulators add to VIN (01 December 2007)
Addressing a new generation of FPGAs and ASICs, Linear Techology (www.linear.com) has added to its ìModule family with three DC/DC regulators for the high VIN market. More..

Management ICs increase portability (01 October 2007)
USB technology has increased portability of devices, such as media players, smart phones, digital still cameras, handheld computers and GPS systems. However, there are power limitations when charging batteries More..

ASSP optimises handheld power (01 July 2007)
Last year, consumers bought over one billion mobile phones, 220 million notebook computers, 140 million MP3 players, 90 million digital still cameras and 10 million personal navigation devices More..

Controller saves converter space (01 March 2007)
Designers of POL DC/DC converters for embedded systems face challenges due to the multiple constraints of limited space and cooling, and the need for the correct power supply tracking for improved system reliability More..

ADCs for MIMO, WiBro and WiMax (01 February 2007)
Linear Technology (www.linear.com) has announced the LTC2285, 14bit, 125Msample/sec, dual, high speed ADC for MIMO (multiple input, multiple output) applications. It has a low power dissipation of 395mW/channel for power-efficient, multicarrier, wireless basestation transceiver applications. More..

A matter of taste in regulator choice (01 November 2006)
Recent technical advancements in the performance of switching regulators and innovative packaging methods allow a new generation of point-of-load DC/DC regulators, including all the circuit components, to be shrunk and resemble surface-mount ICs. More..

In-car multimedia switches regulators (01 August 2006)
At low output voltages and even with moderate current levels above a few hundred mA, a linear regulator generates too much heat, prompting the replacement of linear regulators with switching ones. More..