FAN5250 Datasheet Mobile Processor Core-Voltage Regulator

Manufacturer: Fairchild (now onsemi)

FAN5250 mobile processor core-voltage regulator by Fairchild (now onsemi) - Datasheet Preview

Datasheet Details

Part number	FAN5250
Manufacturer	Fairchild (now onsemi)
File Size	469.97 KB
Description	Mobile Processor Core-Voltage Regulator
Download	FAN5250 Download (PDF)

General Description

The FAN5250 is a single output power controller to power mobile CPU cores.

The FAN5250 includes a 5-bit digital-toanalog converter (DAC) that adjusts the core PWM output voltage from 0.6VDC to 1.75VDC, and may be changed during operation.

Special measures are taken to allow the output to transition with controlled slew rate to comply with Transmeta’s LongRun™ and Intel’s P3-M Speed-Step™ requirements.

Overview

www.fairchildsemi.com FAN5250 Mobile Processor Core-Voltage Regulator.

Key Features

High efﬁciency over wide load range.
Non dissipative current-sense; uses MOSFET RDS(ON) or can use optional Current-Sense resistor for greater precision.
Overcurrent protection.
Powerful drivers for N-Channel MOSFETs with adaptive dead time.
Precision core voltage control.
Remote “Kelvin” sensing.
Summing current-mode control with programmable Active Droop for Optimum Transient Response and Lower Processor Power Dissipation.

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