Datasheet > FAN5059M

FAN5059M

更新时间： 2024-11-20 23:51:47

品牌	Logo	应用领域
其他 - ETC		模拟IC
页数	文件大小	规格书
18页	144K
描述
Analog IC

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数据手册

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FAN5059M 数据手册

www.fairchildsemi.com

FAN5 0 5 9

Hig h P e rfo rm a n c e P ro g ra m m a b le S yn c h ro n o u s

DC-DC Co n t ro lle r fo r Mu lt i-Vo lt a g e P la t fo rm s

Features

Applications

• Programmable output for Vcore from 1.3V to 3.5V using

• Power supply for Pentium^®III Camino Platform

• Power supply for Pentium III Whitney Platform

• VRM for Pentium III processor

an integrated 5-bit DAC

•

Controls adjustable linears for Vagp (selectable 1.5V/3.3V),

Vclock (2.5V), and Vtt (1.5V) or Vnorthbridge (1.8V)

• Programmable multi-output power supply

• Meets VRM speciﬁcation with as few as 5 capacitors

• Meets 1.550V +40/-70mV over initial tolerance,

temperature and transients

Description

The FAN5059 is a synchronous mode DC-DC controller IC

which provides a highly accurate, programmable set of output

voltages for multi-voltage platforms such as the Intel Camino,

and provides a complete solution for the Intel Whitney and other

high-performance processors. The FAN5059 features remote

voltage sensing, independently adjustable current limit, and a

proprietary Programmable Active Droop^™for optimal converter

transient response. The FAN5059 uses a 5-bit D/A converter

to program the output voltage from 1.3V to 3.5V. The

• Remote sense

• Programmable Active Droop™ (Voltage Positioning)

• Drives N-Channel MOSFETs

• Overcurrent protection using MOSFET sensing

• 85% efﬁciency typical at full load

• Integrated Power Good and Enable/Soft Start functions

• 24 pin SOIC package

FAN5059 uses a high level of integration to deliver load

Block Diagram

+5V

VCCA 21

+3.3V

REF

R_D

PWRGD,

OCL

+1.5V

+2.5V

VCCP

OCL

REF

+12V

+5V

PWRGD,

OCL

R_S

OSC

VCCP

HIDRV

Digital

VCC

Control

23 LODRV

PWRGD, OCL

3.3/1.5V

GNDP

1.24V

Reference

5-Bit

DAC

Power

Good

PWRGD

8 7 6 5 4

ENABLE/SS

VID4

VID0VID2

GNDA

VID1 VID3

Pentium is a registered trademark of Intel Corporation. Programmable Active Droop is a trademark of Fairchild Semiconductor.

Rev. 1.0.0

12 3 4 5 6 7...18

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