Date: 15/07/2012

30V power MOSFETs for DC/DC converters with improved FOM

ROHM has launched new power MOSFETs for low-voltage DC/DC converters used in servers, notebook PCs, and tablet PCs. This new series features high efficiency and is available in 16 different models and 3 package types.

ROHM says its latest power MOSFETs feature simultaneously low gate capacitance and low ON resistance through a proprietary low-capacitance structure along with a new 'trench-type field plate structure' and advanced miniaturization technology. As a result, FOM (Figure of Merit, a performance indicator of power MOSFETs for DC/DC converters) is reduced 50% compared with conventional products. This minimizes both switching loss at the high side of a synchronous rectification DC/DC power supply circuit and conduction loss on the low side, increasing the efficiency of the entire system. It also allows for synchronous rectification at high frequency, making it possible to use smaller peripheral components. In addition, ROHM conducts 100% testing of Rg (gate resistance) and UIS (low-load avalanche capacity).

Pricing: 30-50yen/piece (samples)
Availability: Now (OEM quantities)

The lineup includes an HSMT8 package featuring a mounting area 65% smaller than the HSOP8.
New dual-element HSOP8 package is available that combines both high-side and low-side MOSFETs for DC/DC power supply circuits.