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FAN5018B - 6-Bit VID Controller 2-4 Phase VR10.X Controller

Datasheet Summary

Description

The FAN5018B is a multi-phase DC-DC controller for implementing high-current, low-voltage, CPU core power regulation circuits.

It is part of a chipset that includes external MOSFET drivers and power MOSFETS.

The FAN5018B drives up to four synchronous-rectified buck channels in parallel.

Features

  • a high-bandwidth control loop to provide optimal response to load transients. The FAN5018B senses current using lossless techniques: Phase current is measured through each of the output inductors. This current information is summed, averaged and used to set the loadline of the output via programmable "droop. " The droop is temperature compensated to achieve precise loadline characteristics over the entire operating range. Additionally, individual phase current is measured using the RDS(ON) of the.

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Datasheet Details

Part number FAN5018B
Manufacturer Fairchild Semiconductor
File Size 567.58 KB
Description 6-Bit VID Controller 2-4 Phase VR10.X Controller
Datasheet download datasheet FAN5018B Datasheet
Additional preview pages of the FAN5018B datasheet.

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Full PDF Text Transcription

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www.fairchildsemi.com www.DataSheet4U.com FAN5018B 6-Bit VID Controller 2-4 Phase VR10.X Controller General Description The FAN5018B is a multi-phase DC-DC controller for implementing high-current, low-voltage, CPU core power regulation circuits. It is part of a chipset that includes external MOSFET drivers and power MOSFETS. The FAN5018B drives up to four synchronous-rectified buck channels in parallel. The multi-phase buck converter architecture uses interleaved switching to multiply ripple frequency by the number of phases and reduce input and output ripple currents. Lower ripple results in fewer components, lower component cost, reduced power dissipation, and smaller board area. The FAN5018B features a high-bandwidth control loop to provide optimal response to load transients.
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