NCP5393B
2/3/4-Phase Controller for CPU Applications
The NCP5393B 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 NCP5393B 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 eve...