RT34063AGN 查看數據表（PDF） - Richtek Technology

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产品描述 (功能)

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RT34063AGN

DC-to-DC Converter Control Circuits

Richtek Technology 

RT34063A

Function Block Diagram

8

DRIVER

IPK 7

VCC 6

COMP 5

SQ

Q2

R

100

1 SC

Q1

2 SE

IPK

CT

Oscillator

Comparator

+

-

1.25 V

Reference

Regulator

3 TC

4 GND

Typical Application Circuit

8

180

7

RSC

VIN 0.22

6

12V

100uF

5

170uH

L

SQ

R

IPK

CT

OSC

+

- COMP

CT

1.25V

Ref

R2

R1

47K

2.2K

1

2

1N5819

3

1500pF

4

330uF

VOUT

28V/175mA

CO

Optional Filter

1.0uH

VOUT

100uF

Figure 1. Step-up Converter

www.richtek.com

2

DS34063A-13 March 2007

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