MLP-Packaged MicroFET Products Deliver Excellent Power Dissipation in a Small Form Factor

The MicroFET’s 2mm x 2mm x 0.8mm molded leadless package (MLP), for example, is 55 percent smaller and 20 percent lower in height than 3mm x 3mm x 1.1mm SSOT-6-packaged MOSFETs typically used in low-voltage designs. The MicroFET also provides excellent power dissipation and conduction loss characteristics compared to conventional MOSFETs in SC-70 packages. The combined benefits of compact packaging and high performance make MicroFET devices ideal for battery charging, load switching, boost and DC/DC conversion and many other low-power, space-constrained power-management applications.
“Fairchild’s MicroFET products specifically address the ever-growing need for enhanced thermal performance required by ultra-compact, low-profile portable applications,” said Chris Winkler, marketing director for Fairchild’s Communication Products. “This introduction of seven devices in state-of-the-art packaging offers engineers an even wider selection of MicroFET products that save space while improving thermal and electrical performance in their low-voltage applications.”
Four of the new MicroFET products, the FDMA1023PZ, FDMA520PZ, FDMA530PZ and FDMA1025P, offer various configurations that combine single and dual P-channel PowerTrench MOSFETs and ESD-protecting zener diodes. For additional system performance, the FDMA1023PZ offers guaranteed RDS(ON) ratings at gate voltages (VGS) as low as 1.5V. These devices are especially suited for charging and load-switching applications.
The other three products being introduced offer N- or P-channel MOSFET/Schottky diode combinations. The FDFMA2P029Z and FDFMA2P857 devices combine a P-channel MOSFET with a Schottky diode that is optimized for enhanced forward voltage (VF) and reversed leakage (IR) to maximize efficiency. These two devices are ideal for charging applications where reduced thermal resistance is critical. The third device, the FDFMA2N028Z, uses an N-channel MOSFET and Schottky diode combination, a configuration that is well-suited to boost applications.