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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 165

Very low dropout (VLDO) linear regulators supply low voltage outputs

Tom Gross

Abstract

The LT1580 monolithic low dropout linear regulator, the LT1573 LDO PNP driver and the LT1575 LDO MOSFET controller/driver, are described.

Keywords

Low dropout

LDO

Linear regulator

LT1573 LDO PNP driver

LT1575 LDO MOSFET controller/driver

Introduction

With each new generation of computing systems, total power continues to increase while system voltages fall. CPU core voltages and logic supplies below 1.8V are now commonplace. Power supplies must not only regulate low output voltages but they must also operate from low input voltages. A low voltage, low dropout linear regulator is an attractive conversion option for applications where ...

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