International Rectifier (IR) has introduced the IRF6728M and IRF6708S2 and 30V DirectFET MOSFET chipset tailored for cost sensitive 19V input synchronous buck applications such as notebooks.
According to IR, the IRF6708S2 Small Can and IRF6728M Medium Can devices reduce component count by 30 percent to cut overall system cost. The new DirectFET MOSFETs feature low charge and on-state resistance RDS(on) to minimize conduction and switching losses. The IRF6728M also features a monolithically integrated Schottky that reduces losses associated with body diode conduction and reverse recovery.
The IRF6728M and IRF6708S2 feature IR’s latest generation 30V MOSFET silicon. In addition to low RDS(on) (typ 1.8 and 7.5 mOhms @ 10V respectively) and charge, the new devices leverage the low parasitic resistance inductance and cooling ability of the DirectFET package.
Pricing for the IRF6708S2 and IRF6728M begins at US $0.50 and US $1.0 respectively in 10,000-unit quantities