Datasheet > 电源电路 > 开关式稳压器或控制器> IRU3039CH

IRU3039CH

更新时间： 2024-11-27 23:15:07

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过电流保护
页数	文件大小	规格书
22页	182K
描述
SYNCHRONOUS PWM CONTROLLER WITH OVER CURRENT PROTECTION

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中文翻译

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数据手册

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IRU3039CH 数据手册

Data Sheet No. PD94649

IRU3039

SYNCHRONOUS PWM CONTROLLER

WITH OVER CURRENT PROTECTION

FEATURES

DESCRIPTION

The IRU3039 controller IC is designed to provide a syn-

chronous Buck regulator and is targeted for applications

where the cost and size is critical. The IRU3039 oper-

Current Limit using Lower MOSFET Sensing

Using the 6V internal regulator for charge pump

circuit allows single supply operation up to 18V

Programmable Switching Frequency up to 400KHz ates with a single input supply up to 18V. The output

Soft-Start Function

voltage can be programmed as low as 0.8V for low volt-

age applications. Selectable current limit is provided to

tailor to external MOSFET’s on-resistance for optimum

cost and performance. The IRU3039 features an uncom-

mitted error amplifier for tracking output voltage and is

capable of sourcing or sinking current for applications

such as DDR bus termination.

0.8V Precision Reference Voltage Available

Uncommitted Error Amplifier Available for DDR

Voltage Tracking Applications

Stable with Ceramic Capacitor

APPLICATIONS

DDR Memory VDDQ/VTT Applications

Graphic Card

This device features a programmable switching frequency

set from 200KHz to 400KHz, under-voltage lockout for

both Vcc and Vc supplies, an external programmable

soft-start function as well as output under-voltage detec-

tion that latches off the device when an output short is

detected.

Hard Disk Drive

Netcom on-board DC to DC regulator application

Output voltage as low as 0.8V

Low Cost On-Board DC to DC

TYPICAL APPLICATION

18V

1uF

1uH

3x 15uF

25V

15uF

1uF

0.1uF

VOUT2

Vcc

SS / SD

IRF7466

0.1uF

IRU3039

HDrv

4.7uH

3.3V @ 8A

OCSet

5.76K

REF

2x 330uF

40mΩ

IRF7458

Comp

LDrv

3.16K

5600pF

C11

Optional

Gnd

PGnd

14K

Figure 1 - Typical application of IRU3039.

PACKAGE ORDER INFORMATION

TA (°C)

0 To 70

DEVICE

IRU3039CH

PACKAGE

20-Pin MLPQ 5x5 (H)

Rev. 1.0

06/06/03

www.irf.com

12 3 4 5 6 7...22

中文翻译

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与IRU3039CH相关器件

型号	品牌	获取价格	描述	数据表
IRU3039CHPBF	INFINEON	获取价格	Switching Controller, Voltage-mode, 400kHz Switching Freq-Max, MOS, 5 X 5 MM, LEAD FREE, M
IRU3039CHTR	INFINEON	获取价格	Switching Controller, Voltage-mode, 400kHz Switching Freq-Max, MOS, 5 X 5 MM, MLPQ-20
IRU3039CHTRPBF	INFINEON	获取价格	Switching Controller, Voltage-mode, 400kHz Switching Freq-Max, MOS, 5 X 5 MM, LEAD FREE, M
IRU3046	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
IRU3046CF	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
IRU3046CFPBF	INFINEON	获取价格	Dual Switching Controller, Voltage-mode, 0.5A, 450kHz Switching Freq-Max, PDSO24, PLASTIC,
IRU3047	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
IRU3047CW	INFINEON	获取价格	DUAL SYNCHRONOUS PWM CONTROLLER WITH CURRENT SHARING CIRCUITRY AND LDO CONTROLLER
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,

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