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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 101

Efficient processor power system needs no heat sink

John Seago

Abstract

The LTC1435, a current mode, constant frequency, synchronous step-down switching regulator that uses external N-channel MOSFETs for very high efficiency, is described.

Keywords

Switching regulator

Pentium processor

LTC1435

New designs require more functionality in an ever decreasing package size. Compact, efficient high frequency power supplies are required and there is seldom room for a heat sink. Portable computers have some of the most demanding requirements. Powering the Pentium processor adds additional challenges for the power system designer.

New IC powers portable Pentium processor and much more

The LTC1435 is a current mode, constant frequency, ...

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