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NCP5393

ON Semiconductor
Part Number NCP5393
Manufacturer ON Semiconductor
Description 2/3/4-Phase Controller
Published May 7, 2008
Detailed Description NCP5393 2/3/4-Phase Controller for CPU Applications The NCP5393 is a multiphase synchronous buck regulator controller de...
Datasheet PDF File NCP5393 PDF File

NCP5393
NCP5393

Overview
NCP5393 2/3/4-Phase Controller for CPU Applications The NCP5393 is a multiphase synchronous buck regulator controller designed to power the Core and Northbridge of an AMD microprocessor.
The controller has a user configurable two, three, or four phase regulator for the Core and an independent single phase regulator to power the microprocessor Northbridge.
The NCP5393 incorporates differential voltage sensing, differential phase current sensing, optional load−line voltage positioning, and programmable VDD and VDDNB offsets to provide accurately regulated power parallel− and serial−VID AMD processors.
Dual−edge multiphase modulation provides the fastest initial response to dynamic load events.
This reduces system cost by requiring less bulk and ceramic output capacitance to meet transient regulation specifications.
High performance operational error amplifiers are provided to simplify compensation of the VDD and VDDNB regulators.
Dynamic Reference Injection further simplifies loop compen...


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