Vishay and Digi-Key offer thermal benefits of double-sided
cooling package with on-resistance down to 1.4 mΩ
Vishay's n-channel 20-V, 30-V, and 40-V devices in the PolarPAK® family of power MOSFETs with double-sided cooling, give designers a new way to reduce system size and cost through better MOSFET thermal performance.
Aimed at synchronous rectification, point-of-load converters, and OR-ing applications in telecom and data communications systems, the newly added Vishay Siliconix PolarPAK devices deliver up to 48% better on-resistance and 12% better on-resistance-times-gate-charge performance than the next-best devices on the market with double-sided cooling.
These improved specifications translate into lower conduction and switching losses that reduce power consumption in end systems. The dual heat dissipation paths provided by PolarPAK’s double-sided cooling construction allow high current densities in systems with forced air cooling, enabling more compact designs and/or the ability to reduce the number of paralleled MOSFETs. To the extent that paralleling is needed at all, PolarPAK simplifies such designs with its straightforward pin-out, minimizing inductance from board layouts, and thus improving efficiency, especially at higher frequencies.