MOSFETs for DC/DC Conversion
The FDS4770, FDS4470, FDS4780, and the FDS4672A, five N-channel 40 V MOSFETs for DC/DC conversion that offer efficiency benefits in power supply designs are available from Fairchild. The FDS4770, at 7.5 mOhms maximum, has an extremely low RDS(on) rating for a 40 V, SO-8 and has a 175°C maximum junction temperature. The 40V MOSFETs offer extended avalanche energy capability for rugged operation. Depending on the input and output voltages demanded by a particular application, these 40 V MOSFETs can be used as synchronous rectifiers or as primary or high-side switches in isolated and non-isolated power supply designs.