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SC457

Part Number	SC457
Manufacturer	Semtech Corporation
Description	Single-Phase Single Chip Vcore Power Supply
Published	Nov 17, 2008
Detailed Description	SC457 POWER MANAGEMENT Description The SC457 is a single phase, high performance PWM controller designed to power advanc...
Datasheet	SC457 PDF File

Overview

SC457 POWER MANAGEMENT Description The SC457 is a single phase, high performance PWM controller designed to power advanced processors.
On-chip support is provided for VID on-the-ﬂy transitions and active voltage positioning.
The SC457 implements hysteretic control technology providing the fastest possible transient response while avoiding the stability issues inherent to classical PWM controllers.
Eliminating the sense resistors reduces costs www.
DataSheet4U.
com and PCB area while increasing system efﬁciency.
Integrated SmartDriver™ technology initially turns on the high-side driver with soft drive to reduce ringing, EMI, and capacitive turn-on of the low side MOSFET, while increasing overal...

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