Q0765R PDF – Fairchild Power Switch ( FSQ0765R, QO765R )

Part Number: Q0765R, FSQ0765R

Function: Green-Mode Fairchild Power Switch

Package: TO-220 Type

Manufacturer: Fairchild Semiconductor


Q0765R PDF image


This is Green-Mode Fairchild Power Switch.

A Quasi-Resonant Converter (QRC) 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 quasi-resonant operation and Alternating Valley Switching (AVS). The PWM controller includes an integrated fixed-frequency oscillator, Under-Voltage Lockout (UVLO), LeadingEdge Blanking (LEB), optimized gate driver, internal softstart, temperature-compensated precise current sources for a loop compensation, and self-protection circuitry.


1. Optimized for Quasi-Resonant Converter (QRC)

2. Low EMI through Variable Frequency Control and AVS (Alternating Valley Switching)

3. High-Efficiency through Minimum Voltage Switching

4. Narrow Frequency Variation Range over Wide Load and Input Voltage Variation

5. Advanced Burst-Mode Operation for Low Standby Power Consumption

6. Simple Scheme for Sync Voltage Detection



Q0765R PDF Datasheet

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