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IRU3047CW

更新时间： 2024-11-27 22:48:03

品牌	Logo	应用领域
英飞凌 - INFINEON		稳压器开关式稳压器或控制器电源电路开关式控制器光电二极管
页数	文件大小	规格书
19页	135K
描述
DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER

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中文翻译

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数据手册

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IRU3047CW 数据手册

Data Sheet No. PD94252

IRU3047

DUAL SYNCHRONOUS PWM CONTROLLER WITH

CURRENT SHARING CIRCUITRY AND LDO CONTROLLER

PRELIMINARY DATA SHEET

FEATURES

DESCRIPTION

The IRU3047 IC combines a Dual synchronous Buck

controller and a linear regulator controller, providing a

cost-effective, high performance and flexible solution for

Dual Synchronous Controller in 20-Pin Package

with 1808 out-of-phase operation

LDO Controller with 40mA drive

Can be configured as 2-Independent or 2-Phase multi-output applications. The Dual synchronous con-

PWM Controller troller can be configured as 2-independent or 2-phase

Programmable Current Sharing in 2-Phase Configu- controller. In 2-phase configuration, the IRU3047 provides

ration

a programmable current sharing which is ideal when the

output power exceeds any single input power budget.

IRU3047 provides a separate adjustable output by driv-

ing a switch as a linear regulator. This device features an

internal 200KHz oscillator, under-voltage lockout for all

input supplies, an external programmable soft-start func-

tion as well as output under-voltage detection that latches

off the device when an output short is detected.

Flexible, Same or Separate Supply Operation

Operation from 4V to 25V Input

Internal 200KHz Oscillator per phase

Soft-Start controls all outputs

Fixed Frequency Voltage Mode

500mA Peak Output Drive Capability

Short Circuit Protection for All Outputs

Power Good Output

APPLICATIONS

Hard Disk Drive

Power supplies requiring multiple outputs

Dual-Phase Power Supply

DDR Memory Source Sink Vtt Application

Graphic Card

TYPICAL APPLICATION

12V

C12

C11

C13

VCL

Vcc

VcH1 VcH2

HDrv1

C14

VOUT1

C16

LDrv1

3.3V

VOUT3

Fb3

PGnd

VREF

Vp2

Fb1

IRU3047

VOUT2

Comp1

Fb2

C17

Comp2

HDrv2

PGood

LDrv2

Gnd

C10

Figure 1 - Typical application of IRU3047 configured as 2-phase converter.

PACKAGE ORDER INFORMATION

TA (°C)

DEVICE

PACKAGE

0 To 70

IRU3047CW

20-Pin Plastic SOIC (W)

Rev. 1.0

09/09/02

www.irf.com

12 3 4 5 6 7...19

中文翻译

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与IRU3047CW相关器件

型号	品牌	获取价格	描述	数据表
IRU3047CWPBF	INFINEON	获取价格	暂无描述
IRU3047CWTR	INFINEON	获取价格	Dual Switching Controller, Voltage-mode, 0.5A, 220kHz Switching Freq-Max, PDSO20, PLASTIC,
IRU3048	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CF	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CFPBF	INFINEON	获取价格	Dual Switching Controller, Voltage-mode, 0.5A, 220kHz Switching Freq-Max, PDSO16, PLASTIC,
IRU3048CFTR	INFINEON	获取价格	暂无描述
IRU3048CS	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER CIRCUITRY AND LDO CONTROLLER
IRU3048CSPBF	INFINEON	获取价格	Dual Switching Controller, Voltage-mode, 0.5A, 220kHz Switching Freq-Max, PDSO16, PLASTIC,
IRU3048CSTR	INFINEON	获取价格	暂无描述
IRU3055	INFINEON	获取价格	5-BIT PROGRAMMABLE 3-PHASE SYNCHRONOUS BUCK CONTROLLER IC

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