Datasheet > IRU3137CS

IRU3137CS

更新时间： 2024-09-15 21:53:55

品牌	Logo	应用领域
英飞凌 - INFINEON		控制器
页数	文件大小	规格书
19页	169K
描述
8-PIN SYNCHRONOUS PWM CONTROLLER

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数据手册

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IRU3137CS 数据手册

Data Sheet No. PD94700

IRU3137

8-PIN SYNCHRONOUS PWM CONTROLLER

FEATURES

DESCRIPTION

1A Peak Output Drive Capability

0.8V Reference Voltage

The IRU3137 controller IC is designed to provide a low

cost and high performance synchronous Buck regulator

for on-board DC to DC converter applications. The out-

put voltage can be set as low as 0.8V and higher voltage

can be obtained with an external voltage divider. High

peak current gate drivers provide fast switching transi-

tion for applications requiring high output current in the

range of 15A to 20A.

Shuts off both drivers at shorted output

and shutdown

Operating with single 5V or 12V supply voltage

Stable with ceramic capacitors

Internal 200KHz Oscillator

Soft-Start Function

Protects the output when control FET is shorted

Synchronous Controller in 8-Pin Package

This device features an internal 200KHz oscillator, un-

der-voltage lockout for both Vcc and Vc supplies, an

external programmable soft-start function as well as

output under-voltage detection that latches off the de-

vice when an output short is detected.

APPLICATIONS

DDR Memory Application

Low voltage distributed DC-DC

Graphic Cards

Low cost on-board DC to DC such as 5V to 2.5V,

1.8V or 0.8V

TYPICALAPPLICATION

Optional

12V

1uH

1uF

47uF

4x 150uF

Vcc

HDrv

IRF7832

2.5V

@ 15A

SS/SD

2.2uH

0.1uF

IRF7832

LDrv

IRU3137

3x 330uF

40mΩ, Poscap

Comp

2.15K

3300pF

1K, 1%

Gnd

30K

Optional

Figure 1 - Typical application of IRU3137.

PACKAGE ORDER INFORMATION

TA (°C)

DEVICE

PACKAGE

FREQUENCY

0 To 70

IRU3137CS

8-Pin Plastic SOIC NB (S)

200KHz

Rev. 1.0

06/22/04

www.irf.com

12 3 4 5 6 7...19

中文翻译

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