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Analog Circuit Design Volume Three by John Hamburger, Bob Dobkin

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Chapter 100

Low noise switching regulator helps control EMI

John Seago

Abstract

A low noise switching regulator that helps control electromagnetic interference (EMI) is described.

Keywords

Switching regulator

Electromagnetic interference

EMI

LTC1436-PLL

Electromagnetic interference (EMI) is a potential problem for the circuit designer. Switching regulators can cause EMI in many products. Linear Technology has developed new techniques like spread-spectrum modulation, phase-locked synchronization and Adaptive Power mode that can reduce the amount of unwanted interference.

New IC solves old problems

The LTC1436-PLL is a constant frequency, current mode, synchronous step-down switching regulator that controls external N-channel MOSFETs ...

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