IRU3073

更新时间： 2024-11-18 03:44:35

品牌	Logo	应用领域
英飞凌 - INFINEON		过电流保护控制器
页数	文件大小	规格书
21页	237K
描述
SYNCHRONOUS PWM CONTROLLER WITH OVER-CURRENT PROTECTION / LDO CONTROLLER

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

IRU3073 数据手册

Data Sheet No. PD94699

IRU3073

SYNCHRONOUS PWM CONTROLLER WITH

OVER-CURRENT PROTECTION / LDO CONTROLLER

FEATURES

DESCRIPTION

Synchronous Controller plus one LDO controller

Current Limit using MOSFET Sensing

Single 5V/12V Supply Operation

Programmable Switching Frequency up to

400KHz

The IRU3073 controller IC is designed to provide a low

cost synchronous Buck regulator for on-board DC to DC

converter for multiple output applications.

The outputs can be programmed as low as 0.8V for low

voltage applications.

Soft-Start Function

Fixed Frequency Voltage Mode

Precision Reference Voltage Available

Uncommitted Error Amplifier available for DDR

voltage tracking application

Selectable over-current protection is provided by using

external MOSFET's on-resistance for optimum cost and

performance.

This device features a programmable frequency set from

200KHz to 400KHz, under-voltage lockout for all input

supplies, an external programmable soft-start function

as well as output under-voltage detection that latches

off the device when an output short is detected.

APPLICATIONS

DDR memory source sink VTT application

Low cost on-board DC to DC such as

12V/5V to output voltages as low as 0.8V

Graphic Card

Hard Disk Drive

Multi-Output Applications

TYPICAL APPLICATION

3.3V

Vcc

12V

Drv2

Fb2

VOUT2

VcH

VcL

+5V

IRU3073

HDrv

0.1uF

VREF

OCSet

LDrv

VOUT1

Comp

C10

SS/SD

R10

C11

Fb1

Gnd

PGnd

R11

Figure 1 - Typical application of IRU3073.

PACKAGE ORDER INFORMATION

TA (°C)

DEVICE

PACKAGE

0 To 70

IRU3073CQ

16-Pin Plastic QSOP NB (Q)

Rev. 1.0

09/17/03

www.irf.com

12 3 4 5 6 7...21

中文翻译

下载PDF

与IRU3073相关器件

型号	品牌	获取价格	描述	数据表
IRU3073CQ	INFINEON	获取价格	SYNCHRONOUS PWM CONTROLLER WITH OVER-CURRENT PROTECTION / LDO CONTROLLER
IRU3073CQTR	INFINEON	获取价格	暂无描述
IRU3073CQTRPBF	INFINEON	获取价格	Switching Controller, Voltage-mode, 460kHz Switching Freq-Max, PDSO16, LEAD FREE, PLASTIC,
IRU3137	INFINEON	获取价格	8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3137CS	INFINEON	获取价格	8-PIN SYNCHRONOUS PWM CONTROLLER
IRU3138	INFINEON	获取价格	SYNCHRONOUS PWM CONTROLLER FOR TERMINATION POWER SUPPLY APPLICATIONS
IRU3138CS	INFINEON	获取价格	SYNCHRONOUS PWM CONTROLLER FOR TERMINATION POWER SUPPLY APPLICATIONS
IRU3138CSPBF	INFINEON	获取价格	Switching Regulator/Controller, Voltage-mode, 440kHz Switching Freq-Max, BIPolar, PDSO14,
IRU3138CSTR	INFINEON	获取价格	Switching Regulator/Controller, Voltage-mode, 440kHz Switching Freq-Max, BIPolar, PDSO14
IRU3138CSTRPBF	INFINEON	获取价格	Switching Regulator/Controller, Voltage-mode, 440kHz Switching Freq-Max, BIPolar, PDSO14,