FAN5240 - Multi-Phase PWM Controller

Product Overview

Fairchild Semiconductor

Datasheet Details

Part number	FAN5240
Manufacturer	Fairchild Semiconductor
File Size	447.50 KB
Description	Multi-Phase PWM Controller
Datasheet	FAN5240 Datasheet
Additional preview pages of the FAN5240 datasheet.

Product details

Description

The FAN5240 is a single output 2-Phase synchronous buck controller to power AMD’s mobile CPU core.

The FAN5240 includes a 5-bit digital-to-analog converter (DAC) that adjusts the core PWM output voltage from 0.925VDC to 2.0VDC, which may be changed during operation.

Features

CPU Core power: 0.925V to 2.0V output range ±1% reference precision over temperature Dynamic voltage setting with 5-bit DAC 5V to 24V input voltage range 2 phase interleaved switching Active droop to reduce output capacitor size Differential remote voltage sense High efﬁciency: >90% efﬁciency over wide load range >80% efﬁciency at light load Excellent dynamic response with Voltage Feed-Forward and Average Current Mod.

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Published: Mar 30, 2005 |