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FSQ0365/0265/0165/321 — Green Mode Fairchild Power Switch (FPS™) for Valley Switching Converter
August 2011
FSQ0365, FSQ0265, FSQ0165, FSQ321
Green Mode Fairchild Power Switch (FPS™)
for Valley Switching Converter
– Low EMI and High Efficiency
Features
Optimized for Valley Switching Converter (VSC)
Low EMI through Variable Frequency Control and
Inherent Frequency Modulation
Description
A Valley Switching Converter generally shows lower EMI
and higher power conversion efficiency than a
conventional hard-switched converter with a fixed
switching frequency. The FSQ-series is an integrated
Pulse-Width Modulation (PWM) controller and
SenseFET specifically designed for valley switching
operation with minimal external components. The PWM