SP34063AEN/TR Datasheet

IC型號：
SP34063AEN/TR
PDF描述：
1.5A Buck/Boost/Inverting DC-DC Switching Regulator
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115.58KB
PDF頁數(shù)：
10頁
芯片廠家：
SIPEX

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Advanced

SP34063A

1.5A Buck/Boost/Inverting DC-DC Switching

Regulator

FEATURES

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Supply Voltage: 3V - 36V

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Current Limiting

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Output Switch Current to 1.5A

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Adjustable Output Voltage

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Operation frequency up to 110KHz

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Low Quiescent Current

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Precision 2% Reference

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Available in 8 pin NSOIC Package

Switch

Collector

Switch

Emitter

Timing

Capacitor

GND

8 PIN NSOIC

Driver

Collector

Sense

Comparator

Inverting Input

Now Available in Lead Free Packaging

APPLICATIONS

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Battery Charger Circuit

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NICs/Switches/Hubs

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ADSL Modems

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Negative Voltage Power Supply

DESCRIPTION

The SP34063A is a monolithic switching regulator control circuit containing the primary

functions required for DC-DC converters. This device consists of an internal temperature

compensated reference, voltage comparator, controlled duty cycle oscillator with active

current limit circuit, driver and high current output switch. This device was specifically

designed to be used in buck, boost, and Voltage-Inverting applications with a minimum

number of external components. The SP34063A is available in 8 pin NSOIC package.

TYPICAL APPLICATION CIRCUIT

L1 150碌H

SP34063A

R3 180

1N5819

Ipk

OSC

1.25V

Reference

Regulator

RSC

0.22

= 12V

100碌F

1500 pF

R1 47k

VOUT

L2 1.0

碌H

28V/175mA

+ C2

330

碌F

Optional

Filter

VOUT

100

碌F

R2 2.2k

Date: 1/11/05

SP34063A 1.5A Buck/Boost/Inverting DC-DC Switching Regulator

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