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FAN5032 8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller
April 2006
FAN5032 8-Bit Programmable 2 to 4 Phase Synchronous Buck Controller
Features
■ Selectable 2, 3, or 4 phase operation at up to 1MHz ■ ■ ■ ■ ■ ■ ■ ■
Description
The FAN5032 is a controller for a multi-phase buck switching regulator optimized to convert a 12V input supply to the processor core voltage required by highperformance Intel processors. It has an internal 8-bit digital to analog converter (DAC) that converts a digital voltage identification (VID) code, sent from the processor to set the output voltage between 0.5V and 1.6V in 6.25mV steps. It outputs a pulse-width modulated (PWM) signal to external MOSFET drivers that, in turn, drive the switching power MOSFETs.
FAN5032 Datasheet
