MOSFET/Schottky Duo Boosts Converter Efficiency

Recording a 6% hike in efficiency for DC/DC converter applications when compared to existing monolithic devices, the Si4642DY SkyFET power MOSFET with integrated Schottky diode maintains efficiency under light or heavy loads. For example, the device exhibits an efficiency greater than 91% at 300 kHz and 6A. It performs as the low-side power MOSFET in synchronous buck converters for notebook core voltage and VRM applications, graphic cards, point-of-load conversion, and synchronous rectification in computers and servers. Features include an on-resistance of 3.75 milliOhms at a 10V gate drive. Price is $0.57 each/100,000. VISHAY INTERTECHNOLOGY, INC., Malvern, PA. (619) 336-0860.