DirectFET chipset launched
24 July 2008
International Rectifier has launched a 25V DirectFET chipset optimised for high frequency, high efficiency DC-DC applications.
The 25V synchronous buck converter DirectFET MOSFET chipset for POL converter designs have a 0.7mm profile and combine the company’s latest HEXFET MOSFET silicon and DirectFET packaging technology to deliver a high density, single control and single synchronous MOSFET.
The IRF6710S2, IRF6795M and IRF6797M devices allow for operation in excess of 25A per phase, and the company claims that the IRF6710S2 is suited as a control MOSFET. This is due to the device’s low gate resistance of 0.3Ohms and low Miller charge of 3.0nC which reduces switching losses. IRF6795M and IRF6797M feature low RDS(on) to reduce conduction losses, while the integrated Schottky reduces diode conduction losses and reverse recovery losses, making these devices suited to high current synchronous MOSFET circuits, according to the company. The IRF6795M and IRF6797M have a common MX footprint to allow easy migration from existing SyncFET devices.
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