SC3503 - Fast Turn-Off Synchronous Rectifier Controller

Product Overview

Part number	SC3503
Manufacturer	SOUTHCHIP
File Size	665.76 KB
Description	Fast Turn-Off Synchronous Rectifier Controller
Datasheet	SC3503 Datasheet
Additional preview pages of the SC3503 datasheet.

SC3503 is a smart secondary-side driver IC designed to drive N-Channel power MOSFET used as synchronous rectifiers in isolated flyback converters.

The MOSFET can replace Schottky diode so the system can achieve higher efficiency and superior heat dissipation performance.

High output voltage up to 22V.
Wide output range, even down to 0V.
No need of auxiliary winding for power supply.
Patented programmable turn on detection circuitry prevents MOSFET from mistake turn-on.
Compliant with multiple types of MOSFETs.
High efficiency can meet CoC V5 and DoE VI.
10nS turn off propagation delay.
High switching frequency up to 1MHz.
Extremely low quiescent current leads to low stand by power.
Supports DCM, CCM, and Q.

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Published: Oct 27, 2024 |