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SC457 - Single-Phase Single Chip Vcore Power Supply

General 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.

Key Features

  • include programmable soft-start, open-drain PG_DEL and PG# outputs, dynamic current sharing, over-voltage and programmable over-current protection. The SC457 is available in a space-saving 32-pin MLP package. Single-Phase Single Chip Vcore Power Supply Features Single-Phase Solution with Integrated Drivers Hysteretic Control for Fast Transient Response Active Voltage Positioning True Differential Remote (die) Sensing On-Chip Support for all Power Management Features Programmable Soft-Start and.

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Datasheet Details

Part number SC457
Manufacturer SEMTECH
File Size 86.54 KB
Description Single-Phase Single Chip Vcore Power Supply
Datasheet download datasheet SC457 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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 overall efficiency. Hysteretic operation adaptively reduces the SC457 switching frequency at light loads.