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LTC1438

Part Number	LTC1438
Manufacturer	Linear Technology
Description	Dual High Efficiency/ Low Noise/ Synchronous Step-Down Switching Regulators
Published	Mar 22, 2005
Detailed Description	LTC1438/LTC1439 Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators FEATURES s s s s s s s DES...
Datasheet	LTC1438 PDF File

Overview

LTC1438/LTC1439 Dual High Efficiency, Low Noise, Synchronous Step-Down Switching Regulators FEATURES s s s s s s s DESCRIPTION The LTC ®1438/LTC1439 are dual, synchronous stepdown switching regulator controllers which drive external N-channel power MOSFETs in a phase-lockable fixed frequency architecture.
The Adaptive PowerTM output stage selectively drives two N-channel MOSFETs at frequencies up to 400kHz while reducing switching losses to maintain high efficiencies at low output currents.
An auxiliary 0.
5A linear regulator using an external PNP pass device provides a low noise, low dropout voltage source.
A secondary winding feedback control pin (SFB1) guarantees regulation regardless of...

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