Datasheet > FAN5029MPX-NAAC238

FAN5029MPX-NAAC238

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		控制器
页数	文件大小	规格书
3页	140K
描述
8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller

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January 2007

FAN5029

8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller

Description

Features

The FAN5029 is

a multi-phase buck switching

• Selectable 2-, 3-, 4-, or 5-phase operation at up to

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 that is sent from the processor to set the output

voltage between 0.5V and 1.6V. It outputs a PWM to

external MOSFET drivers that, in turn, 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-, 3-, 4-, or 5-phase applications.

1MHz per phase

• ±7.7mV worst-case differential sensing error

• Active current balancing between the output phases

• Power good and crowbar blanking supports on-the-

fly VID code changes

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

VID tables

• Programmable short-circuit protection and latch-off

delay

• Programmable soft start ramp

The FAN5029 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 FAN5029 also provides an

accurate and reliable short-circuit protection function

with an adjustable over-current set point.

Applications

• Desktop PC/Server processor power supplies for

existing and next generation Intel processors

• VRM modules products

The FAN5029 is specified over the extended

commercial temperature range of 0°C to +85°C and is

available in a 40-lead MLP package.

Part Numbers

• FAN5029MPX is not for new designs.

• The FAN5029MPX_NAAC238 replaces the

FAN5029MPX and is compatible with all VR10 and

VR11 processors.

Ordering Information

Temperature Package

Part Number

Lead

Free

Quantity

per Reel

Packing Method

Range

Type

FAN5029MPX

Not For New Designs

Yes Tape and Reel

FAN5029MPX_NAAC238

0°C to 85°C

MLP-40

3,000

For more information, please contact Ron Berthiaume at ronald.berthiaume@fairchildsemi.com.

FAN5029 Rev. 1.1.3

www.fairchildsemi.com

12 3

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