S1F71200 Series

EXAMPLE OF EXTERNAL CONNECTION OF REFERENCE CIRCUIT

Basic Circuit

Driver

Oscillator

SWO

VDD1

Overcurrent detection

_ circuit

ISENSE

PWM+

VDD2

EXO_

SSC

Soft start

VO

VSS

+

Series regulator

Input voltage

Output voltage

SRC

VSW

+ SWC

_

Error amplifier

IREF

Reference

VC

voltage POFFX circuit

VREF

4–52

EPSON

S1F70000 Series Technical Manual