Datasheet > FAN50FC3

FAN50FC3

更新时间： 2024-09-25 03:59:15

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
21页	518K
描述
8-Bit Programmable, 2- to 3-Phase FastvCore⑩ Buck Controller

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FAN50FC3 数据手册

June 2007

FAN50FC3 — 8-Bit Programmable, 2- to 3-Phase

FastvCore™ Buck Controller

Features

Description

The FAN50FC3 device is a multi-phase buck switching

regulator controller optimized to convert a 12V input

supply to the processor core voltage required by high-

performance Intel^®processors. It has an internal, 8-bit

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

PWM signals to external MOSFET drivers that drive the

switching power MOSFETs. The switching frequency of

the design is programmable by a single resistor value

and the number of phases can be programmed to

support 2- or 3-phase applications.

FastvCore™ nonlinear control for fast transient and

to minimizes the number of output caps required

Selectable 2- or 3-phase operation at up to

1MHz per phase

±7.7mV worst-case differential sensing error over

temperature

Active current balancing between output phases

Power Good and Crowbar blanking supports

on-the-fly VID code changes

0.5V to 1.6V output

Usable for Intel^®VR10 and VR11 designs

The FAN50FC3 also includes programmable no-load

offset and droop functions to adjust the output voltage

as a function of the load current, as required by the

Intel^®specifications. The FAN50FC3 also provides an

accurate and reliable short-circuit protection function

with an adjustable over-current set point.

Selectable VR10 extended (7-bit) and VR11 (8-bit)

VID tables

Programmable soft-start ramp

Programmable short-circuit protection and latch-off

delay

FastvCore™ technology greatly improves the fast

transient response required by today’s high-performance

processors. This allows fewer output capacitors to be

used in the application.

Applications

The FAN50FC3 is specified over the commercial

temperature range of 0°C to +85°C and is available in a

32-lead MLP package.

Desktop PC/Server processor power supplies for

existing and next-generation Intel^®processors

VRM modules

Related Applications Notes

AN-6052 — Instructions for the Multi-Phase VR11

MathCad^®Design Tool

Ordering Information

Operating

Temperature Range

Part Number Pb-Free

Package

Packing Method

32-Lead, Molded Leadless

Package (MLP)

FAN50FC3MPX

Yes

0 to 85°C

Tape and Reel

FAN50FC3 Rev. 1.0.0

www.fairchildsemi.com

12 3 4 5 6 7...21

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与FAN50FC3相关器件

型号	品牌	获取价格	描述	数据表
FAN50FC3MPX	FAIRCHILD	获取价格	8-Bit Programmable, 2- to 3-Phase FastvCore⑩
FAN5109	FAIRCHILD	获取价格	Dual Bootstrapped 12V MOSFET Driver
FAN5109B	FAIRCHILD	获取价格	Dual Bootstrapped 12V MOSFET Driver
FAN5109BMX	ROCHESTER	获取价格	HALF BRDG BASED MOSFET DRIVER, PDSO8, LEAD FREE, MS-012AA, SOIC-8
FAN5109BMX	FAIRCHILD	获取价格	Half Bridge Based MOSFET Driver, MOS, PDSO8, LEAD FREE, MS-012AA, SOIC-8
FAN5109MX	FAIRCHILD	获取价格	Dual Bootstrapped 12V MOSFET Driver
FAN5110MPX	FAIRCHILD	获取价格	Half Bridge Based MOSFET Driver, 4 X 4 MM, GREEN, MO-220WGGC, MLP-16
FAN5110MX	FAIRCHILD	获取价格	Half Bridge Based MOSFET Driver, 3.5A, PDSO16, 0.150 INCH, GREEN, MS-012AC, SOIC-16
FAN5110MX	ROCHESTER	获取价格	3.5 A HALF BRDG BASED MOSFET DRIVER, PDSO16, 0.150 INCH, GREEN, MS-012AC, SOIC-16
FAN5182	FAIRCHILD	获取价格	Adjustable Output 1, 2, or 3-Phase Synchronous Buck Controller

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