Two FETs features improved thermal performance
Claimed to set a new industry standard with improved thermals and with higher efficiciency, two additions to the Alpha and Omega Semiconductor PairFET series have been announced.
The AOE6932 and AOE6936 are based on the company’s XS-PairFET package and low voltage technology. The company claims that the pair is optimised for enhanced driving and switching performance.
AOE6932 improves gate driving performance and reduces power loss at relatively low output current, claims the company, while the AOE6936 features a 20V gate voltage tolerance with much smaller parasitic capacitances. Both devices offer the same 8mOhm (max) Rds(ON) at 4.5V gate driving voltage on the high side, but present different Rds(ON) values for the low side FET.
AOE6932 is designed with a 1.8mOhm (max) at 4.5Vgs low side FET, and AOE6936 is designed with a 3mOhm (max) low side FET. Application tests show that these configurations optimiwe each device to achieve the best efficiency and address specific application requirements, such as the I/O voltage headroom, and current per phase for the V core power supply.
Target applications are notebook PC, desktop PC, and high-end VGA designs.
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