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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 32

Inverting DC/DC controller converts a positive input to a negative output with a single inductor

David Burgoon

Abstract

The use of the LTC3863 to produce a negative voltage from a positive voltage source is described. The LTC3863 is elegant in its simplicity, has superior efficiency at light loads and reduces parts count compared to alternative solutions.

Keywords

DC/DC controller

LTC3863

There are several ways to produce a negative voltage from a positive voltage source, including using a transformer or two inductors and/or multiple switches. However, none are as easy as using the LTC3863, which is elegant in its simplicity, has superior efficiency at light loads and reduces parts count compared to alternative solutions. ...

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