October 2006

Rev 2

1/27

AN2432

Application note

EVALSTSR30-60W: 60W AC-DC Adapter

with synchronous rectification using L6668 and STSR30

Introduction

This document describes a 60W adapter application using the L6668 fixed frequency

current mode PWM controller and the STSR30 smart driver for flyback synchronous

rectification.

This chipset guarantees low no-load consumption and high efficiency, making it easy to

comply with world-wide mandatory and voluntary energy saving requirements.

EVALSTSR30-60W demo board

www.st.com