FAN5029MPX_NAAC238 datasheet, PDF

Datasheet> All Categories > Power/power management> The power supply circuit> FAN5029MPX_NAAC238

FAN5029MPX_NAAC238: DescriptionSwitching Controller, 1000kHz Switching Freq-Max, LEAD FREE, MLP-40; CategoryPower/power management The power supply circuit; File Size136KB，3 Pages; ManufacturerFairchild; Websitehttp://www.fairchildsemi.com/

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FAN5029MPX_NAAC238 Overview

Switching Controller, 1000kHz Switching Freq-Max, LEAD FREE, MLP-40

FAN5029MPX_NAAC238 Parametric

Parameter Name	Attribute value
Maker	Fairchild
Parts packaging code	DFN
package instruction	VQCCN,
Contacts	40
Reach Compliance Code	unknown
ECCN code	EAR99
Analog Integrated Circuits - Other Types	SWITCHING CONTROLLER
Control Technology	PULSE WIDTH MODULATION
Nominal input voltage	12 V
JESD-30 code	S-XQCC-N40
length	6 mm
Number of functions	1
Number of terminals	40
Maximum operating temperature	85 °C
Minimum operating temperature
Package body material	UNSPECIFIED
encapsulated code	VQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, VERY THIN PROFILE
Certification status	Not Qualified
Maximum seat height	0.8 mm
surface mount	YES
Switch configuration	PHASE-SHIFT
Maximum switching frequency	1000 kHz
Temperature level	COMMERCIAL EXTENDED
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
width	6 mm
Base Number Matches	1

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FAN5029 — 8-Bit Programmable 2- to 5-Phase Synchronous Buck Controller

January 2007

FAN5029

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

Features

•

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

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

Description

The FAN5029 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 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.

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.

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.

Applications

•

Desktop PC/Server processor power supplies for

existing and next generation Intel processors

•

VRM modules products

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

Part Number

FAN5029MPX

FAN5029MPX_NAAC238

0°C to 85°C

MLP-40

Temperature

Range

Package

Type

Lead

Free

Yes

Packing Method

Quantity

per Reel

3,000

Not For New Designs

Tape and Reel

For more information, please contact Ron Berthiaume at

ronald.berthiaume@fairchildsemi.com.

FAN5029 Rev. 1.1.3

www.fairchildsemi.com

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