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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 163

High voltage inverting charge pump produces low noise positive and negative supplies

Marty Merchant

Abstract

The LTC3260, an inverting charge pump (inductorless) DC/ DC converter with dual low noise LDO regulators that can produce positive and negative supplies from a single wide input (4.5V to 32V) power source, is described.

Keywords

DC/DC converter

Inverting charge pump

Low noise

LTC3260

Introduction

Dual-polarity supplies are commonly needed to operate electronics such as op amps, drivers, or sensors, but there is rarely a dual-polarity supply available at the point of load. The LTC3260 is an inverting charge pump (inductorless) DC/DC converter with dual low noise LDO regulators that can produce positive and negative ...

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