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AZ34063C

0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER

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Preliminary Datasheet

0.8A STEP-DOWN/STEP-UP/INVERTING DC-DC CONVERTER

General Description

Features

AZ34063C

The AZ34063C is a monolithic switching regulator

control circuit containing the primary functions

required for DC-DC converters. This device consists

of internal temperature compensated reference, voltage

comparator, controlled duty cycle oscillator with active

current limit circuit, driver and high current output

switch. This device is specifically designed to be

used in Step-Down, Step-Up and Voltage-Inverting

applications with a minimum number of external com-

ponents.

• Operation from 3.0V to 36V Input

• Low Standby Current

• Current Limiting

• Output Switch Current to 0.8A

• Output Voltage Adjustable

• Operation Frequency up to 180KHz (CT=100pF)

• Precision 2% Reference

Applications

The AZ34063C is the enhanced version of AZ34063 g Battery Chargers

with the ability to work in higher frequency.

g NICs/ Switches/ Hubs

The AZ34063C is available in 2 packages: SOIC-8 and g ADSL Modems

DIP-8.

g Negative Voltage Power Supplies

SOIC-8

DIP-8

Figure 1. Package Types of AZ34063C

Apr. 2005 Rev. 1. 2

BCD Semiconductor Manufacturing Limited

1

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