DC/DC switchmode regulator
20 January 2009
The LTM8021, a complete DC/DC uModule regulator POL system is available from Linear Technology.
It features an on-board inductor and power components in a package that resembles a surface-mount IC. The LTM8021 operates from input supplies from 3V – 36V (40V maximum) and delivers up to 500mA.
The 6.25mm x 11.25mm footprint, and light weight (0.49g) enable system designers to solder the device on the back of the circuit board, creating room on top for digital ICs such as FPGAs, memory and passives including HDMI, Ethernet or SMA connectors. The LTM8021 includes a DC/DC controller IC, power switch, inductor, compensation circuitry and input and output bypass capacitors. The design has the advantage of less heat dissipation and smaller size and target applications are systems with 5V, 12V, 24V and 28V input supply rails such as medical, industrial, avionics and after-market automotive.
The LTM8021 regulates an output voltage from 0.8 – 5V that is adjusted with only one resistor. Encapsulated packaging protects the circuit components against mechanical, chemical and ambient factors. It is rated for operation from -40°C to 85°C and is ROHS compliant, although its gold-plated pads enable use of leaded and lead-free solder during board assembly. It is available immediately from ACAL Technology.
Contact Details and Archive...
Related Articles...
Most Viewed Articles...