Datasheet > FAN5090MTC

FAN5090MTC

更新时间： 2024-01-20 03:23:20

品牌	Logo	应用领域
飞兆/仙童 - FAIRCHILD		转换器
页数	文件大小	规格书
17页	184K
描述
Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications

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FAN5090MTC 数据手册

www.fairchildsemi.com

FAN5090

Two Phase Interleaved Synchronous Buck Converter

for VRM 9.x Applications

Features

Description

• Programmable output from 1.10V to 1.85V in 25mV steps

using an integrated 5-bit DAC

• Two interleaved synchronous phases for maximum

performance

The FAN5090 is a synchronous two-phase DC-DC controller

IC which provides a highly accurate, programmable output

voltage for VRM 9.x processors. Two interleaved synchro-

nous buck regulator phases with built-in current sharing

operate 180° out of phase to provide the fast transient

response needed to satisfy high current applications while

minimizing external components.

• 100nsec transient response time

• Built-in current sharing between phases

• Remote sense

• Programmable Active Droop^(Voltage Positioning)

• Programmable switching frequency from 100KHz to

300KHz per phase

The FAN5090 features Programmable Active Droop^for

transient response with minimum output capacitance. It has

integrated high-current gate drivers, with adaptive delay gate

switching, eliminating the need for external drive devices.

The FAN5090 uses a 5-bit D/A converter to program the

output voltage from 1.10V to 1.85V in 25mV steps with an

accuracy of 1%. The FAN5090 uses a high level of integra-

tion to deliver load currents in excess of 50A from a 12V

source with minimal external circuitry.

• Adaptive delay gate switching

• Integrated high-current gate drivers

• Integrated Power Good, OV, UV, Enable/Soft Start

functions

• Drives N-channel MOSFETs

• Operation optimized for 12V operation

• Overcurrent protection using MOSFET sensing

• 24 pin TSSOP package

The FAN5090 also offers integrated functions including

Power Good, Output Enable/Soft Start, under-voltage lock-

out, over-voltage protection, and adjustable current limiting

with independent current sense on each phase. It is available

in a 24 pin TSSOP package.

Applications

• Power supply for Pentium^IV

• Power supply for Athlon^

• VRM for Pentium IV processor

• Programmable step-down power supply

Block Diagram

+12V

BYPASS

+12V

BOOT A

UVLO

5V Reg

OSC

R_T

Digital

Control

+12V

Current

Limit

BOOT B

+12V

GNDA

Digital

Control

+12V

Power

Good

5-Bit

DAC

2 3

PWRGD

ILIM

VID2 VID4

VID0

VID1

DROOP/E*

ENABLE/SS

AGND

VID3

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

REV. 1.0.1 9/16/03

12 3 4 5 6 7...17

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FAN5090MTC 替代型号

型号	品牌	替代类型	描述	数据表
FAN5090MTCX	FAIRCHILD	完全替代	Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications

与FAN5090MTC相关器件

型号	品牌	获取价格	描述	数据表
FAN5090MTCX	FAIRCHILD	获取价格	Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
FAN5091	FAIRCHILD	获取价格	Two Slice Interleaved Synchronous Buck Converter
FAN5091MTC	FAIRCHILD	获取价格	Two Slice Interleaved Synchronous Buck Converter
FAN5092	FAIRCHILD	获取价格	High Current System Voltage Buck Converter
FAN5092MTC	FAIRCHILD	获取价格	High Current System Voltage Buck Converter
FAN5092MTCX	FAIRCHILD	获取价格	High Current System Voltage Buck Converter
FAN5093	FAIRCHILD	获取价格	Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
FAN5093MTC	FAIRCHILD	获取价格	Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
FAN5093MTCX	FAIRCHILD	获取价格	Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
FAN5093MTCX_NL	FAIRCHILD	获取价格	Switching Controller, Current/voltage-mode, 3A, 2000kHz Switching Freq-Max, PDSO24, LEAD F

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