Datasheet > LR34063

LR34063

更新时间： 2024-09-23 12:01:31

品牌	Logo	应用领域
乐山 - LRC		转换器
页数	文件大小	规格书
12页	244K
描述
DC-DC Converter Control Circuits

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LR34063 数据手册

LESHAN RADIO COMPANY, LTD.

DC-DC Converter

Control Circuits

LR34063

DESCRIPTION:

The LR34063 Series is a monolithic control circuit containing

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

devices consist of an internal temperature compensated refe-

rence,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.

DIP-8

SOP-8

FEATURE::

zꢀ Operation from 3.0 V to 40 V Input

zꢀ Low Standby Current

zꢀ Current Limiting

ORDERING INFORMATION

zꢀ Output Switch Current to 1.5 A

zꢀ Output Voltage Adjustable

zꢀ Frequency Operation to 100 kHz

zꢀ Precision 2% Reference

Device

LR34063

LR34063D

Package

DIP-8

SOP-8

PIN CONNECTIONS

BLOCK DIAGRAM

Switch

Collector

Driver

Collector

Drive

Collector

Switch

Collector

Switch

Emitter

Sense

S Q

Timing

Capacitor

100

Sense

Switch

Emitter

Comparator

Inverting

Input

Gnd

Oscillator

(Top View)

Timing

Capacitor

Comparator

1.25 V

Reference

Regulator

–

Comparator

Inverting

Input

Gnd

(Bottom View)

LR34063-1/12

12 3 4 5 6 7...12

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