SQ33020ZFVP

High Frequency QR Flyback Controller with Valley Lockout, E-Mode GaN Driver and Input OVP

SQ33020ZFVP High Frequency QR Flyback Controller with Valley Lockout, E-Mode GaN Driver and Input OVP Datasheet

Parameters
Features
Description

Part number	SQ33020ZFVP
Pout (max) (W)	140
HV startup	YES
Operation mode	QR
Driving FETs type	GaN
No load loss (mW)	<50
Switching frequency (min)(kHz)	25
Switching frequency (max)(kHz)	300
Features	GaN driver,Programmable gate driver current,Valley lock,Burst mode,X-capacitor discharge
Package	SSOP9
Operating temperature range(°C)	-40 to 125
Functional safety category

DCM+QR Combined Operating Mode
Direct Enhancement-Mode (E-Mode) GaN FET Driver
Programmable Gate Driver Current
Switching Frequency Range: 25kHz–300kHz
Automatic Valley Lockout from 1 to 6 cycles
Low Frequency Burst (1kHz)
Frequency Modulation to Reduce EMI Noise (Configurable using ZCS Resistor)
Internal Soft-Start
Integrated 700V HV Startup Circuit
X Capacitor Discharge Protection
AC Input OVP
Programmable Output OVP and UVP
Current Sense Resistor Short Protection
Internal and External OTP
MSL3
Compact Package: SSOP9

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Evaluation Board

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Photo of evaluation board
Photo of evaluation board
Photo of evaluation board

EVB_SQ33020ZFVP

The EVB_SQ33020ZFVP is intended for evaluating High Frequency QR Flyback Controller with Input OVP

Technical Documentation

Title	Date
Silergy_Catalog_Q2_2026	2026-06-12