Smart Power Stage (SPS) Module with Integrated Thermal Warning

The SPS family is Fairchild’s next-generation, fully optimized, ultra-compact, integrated MOSFET plus synchronous buck, DC-DC applications. The FDMF5820TDC integrates a driver IC with a bootstrap Schottky diode, two power MOSFETs, and a thermal monitor into a thermally enhanced, ultra-compact, 5 mm x 5 mm package. With an integrated approach, the SPS switching power stage is optimized for driver and MOSFET dynamic performance, minimized system inductance, and power MOSFET RDS(ON). The SPS family uses Fairchild's highperformance The SPS family uses Fairchild's highperformance PowerTrench® MOSFET technology, which reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications. A driver IC with reduced dead times and propagation delays further enhances the performance. A thermal warning function warns of a potential over-temperature situation. The FDMF5820TDC incorporates an Auto- DCM Mode (ZCD#) for improved light-load efficiency. The FDMF5820TDC also provides a 3-state 3.3 V PWM input for compatibility with a wide range of PWM controllers.