MC34063A View Datasheet(PDF) - Estek Electronics Co. Ltd

Part Name

Description

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MC34063A

monolithic control circuit containing the primary functions required for DC-to-DC converters

Estek Electronics Co. Ltd 

34063

Description

The MC34063A 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 was specifically designed to be

incorporated in Step-Down and Step-Up and Voltage-Inverting applications with a minimum number of external

components.

Features

• Operation from 3.0 V to 40 V Input

• Low Standby Current

• Current Limiting

• Output Switch Current to 1.5 A

• Output Voltage Adjustable

• Frequency Operation to 100 kHz

• Precision 2% Reference

Plastic Package

Pin Connections

Internal Block Digram

Driver 8

Collector

Ipk 7

Sense

VCC 6

Comparator

Inverting

Input 5

SQ

R

1 Switch

Collector

Q2

Q1

Ipk

Oscillator

CT

Comparator

100

1.25 V

Reference

2 Switch

Emitter

3 Timing

Capacitor

4 Gnd

BEIJING ESTEK ELECTRONICS CO.,LTD

1

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