30V mosfet breaks the 1mOhm MAX RDS(ON) barrier

The FDMS7650, functions as a load switch or an ORing FET. In server farms, these ORing FETs are used when many power supplies are arranged in parallel to share the load. Dissipating less power and delivering higher efficiency is critical for the overall efficiency of these server farms because the FETs are continually on. According to Fairchild, the FDMS7650 is the first in Power56 packaging to break the 1mOhm barrier with a MAX RDS(ON) of 0.99mOhm. This, it says, reduces switching losses and improves the overall efficiency of the application. Fairchild adds that the mosfet can deliver the same total RDS(ON) with half the number of FETs. As an example, in a typical application using 2.0mOhm mosfets, the solution would require twice the number of FETs. The FDMS7650 is able to achieve this RDS(ON) through Fairchild's advanced-performance PowerTrench mosfet technology. This technology yields a low RDS(ON), total gate charge (QG) and Miller Charge (QGD) – enhancements that result in high efficiency by minimising conduction and switching losses.