AP34063 查看數據表（PDF） - Diodes Incorporated.

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AP34063

UNIVERSAL DC/DC CONVERTER

Diodes Incorporated. 

AP34063

UNIVERSAL DC/DC CONVERTER

Features

• Operation from 3.0V to 40V Input

• Low Standby Current

• Current Limiting

• Output Switch Current to 1.6A

• Output Voltage Adjustable

• Frequency Operation to 100 kHz

• Precision 2% Reference

• Lead Free packages: SOP-8L and PDIP-8L (Note 1)

• SOP-8L: Available in “Green” Molding Compound

(No Br, Sb)

• Lead Free Finish/RoHS Compliant (Note 2)

Application Circuit

Description

The AP34063 Series is a monolithic control circuit containing the

primary functions required for DC-to-DC converters. These

devices consist of an internal temperature compensated

reference, comparator, controlled duty cycle oscillator with an

active current limit circuit, driver and high current output switch.

This series is specifically designed for incorporating in

Step-Down and Step-Up and Voltage-Inverting applications with

a minimum number of external components.

(1) Step-Up Converter

8

180

7

Rsc

0.24

Vin

12V

6

+

470

uF

5

120uH

L

1

SQ

R

Ipk

CT

Osc

VCC

+

_

Comp.

Q2

Q1

2

B240

1.25V

Ref

Reg

3

CT

680

pF

4

R2

R1

10k 56k

470uF

+

CO

Vout

28V/200mA

1.0uH

Vout

+

100

Optional Filter

Test

Line Regulation

Load Regulation

Output Ripple

Efficiency

Conditions

Vin = 9V to 12V, IO = 200mA

Vin = 12V, IO = 50mA to 200mA

Vin = 12V, IO = 200mA

Vin = 12V, IO = 200mA

Results

20mV = ±0.035%

15mV = ±0.035%

500mVPP

80%

AP34063 Rev. 5

DS31004

1 of 11

www.diodes.com

JULY 2009

© Diodes Incorporated

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