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IRU3055CQPBF

更新时间： 2024-11-28 12:59:27

品牌	Logo	应用领域
英飞凌 - INFINEON		控制器
页数	文件大小	规格书
26页	353K
描述
Switching Controller, 500kHz Switching Freq-Max, PDSO36, PLASTIC, QSOP-36

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数据手册

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IRU3055CQPBF 数据手册

Data Sheet No. PD94262

IRU3055

5-BIT PROGRAMMABLE 3-PHASE

SYNCHRONOUS BUCK CONTROLLER IC

PRELIMINARY DATA SHEET TEST SPEC

FEATURES

DESCRIPTION

The IRU3055 is a 3-phase synchronous Buck controller

Meets VRM 9.0 Specification

3-Phase Controller with On-Board MOSFET Driver

which provides high performance DC to DC converter for

On-Board DAC programs the output voltage from high current applications.

1.075V to 1.850V

Loss-less Short Circuit Protection

Programmable Frequency

The IRU3055 controller IC is specifically designed to meet

Intel and AMD specifications for the new microproces-

Synchronous operation allows maximum efficiency sor requiring low voltage and high current.

Minimum Part Count

Soft-Start

Power Good Function

Hiccup Mode Current Limit

The IRU3055 features under-voltage lockout for both 5V

and 12V supplies, an external and programmable soft-

start function as well as programming the oscillator fre-

quency by using an external resistor.

APPLICATIONS

Intel Pentium 4 and AMD K7

TYPICAL APPLICATION

12V

1uF

1000uF

1uF

1uH

0.1uF

VCL1

VCL23

HDrv1

Vcc

1uF

6x 1500uF

IRF3704S

OCSet

2.2K

Ref

1uH

IRF3711S

LDrv1

1.5K

PGnd1/

OCGnd

CS1

1.5V / 60A

1uF

IRF3704S

HDrv2

1uH

IRU3055

47K

1uF

C10

0.1uF

IRF3711S

LDrv2

1.5K

PGnd2

C11

1uF

CS2

IRF3704S

HDrv3

1uH

IRF3711S

LDrv3

1.5K

PGnd3

C12

Comp

22nF

C13

1uF

27K

CS3

100pF

C14

(Optional)

8x 2700uF

Figure 1 - Typical application of IRU3055.

PACKAGE ORDER INFORMATION

TA (8C)

DEVICE

PACKAGE

0 To 70

IRU3055CQ

36-Pin Plastic QSOP WB (Q)

Rev. 1.4

08/13/02

www.irf.com

12 3 4 5 6 7...26

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