APW7064 Просмотр технического описания (PDF) - Anpec Electronics

Номер в каталоге

Компоненты Описание

Список матч

APW7064

Synchronous Buck PWM Controller

Anpec Electronics 

APW7064

Block Diagram

VCC

GND

Power-On

Reset

BOOT

UGATE

Digital

Soft-Start

Error

Amp

50%VREF

:2

U.V.P

Comparator

PWM

Comparator

Gate

Control

VREF

FB

COMP

Oscillator

Sawtooth

Wave

FOSC

200kHz

PHASE

LGATE

Typical Application Circuit

12V

1N4148

10R

1µF

Q3

2N7002

ON/OFF

10nF

1nF

6.8K

5 VCC

BOOT 1

7 COMP

UGATE 2

PHASE 8

4

LGATE

6

FB

GND

3

4.7K

2.67K

10nF 1.5K

VIN (12V)

1µH

0.1µF

10µF 2200µFx2

100µF

Q1

APM2509

4.5µH

VOUT (3.3V)

Q2

APM2506

2200µFx2

Copyright © ANPEC Electronics Corp.

9

Rev. A.3 - Aug., 2009

www.anpec.com.tw

Share Link: