IRU3027

更新时间： 2024-09-14 21:54:15

品牌	Logo	应用领域
英飞凌 - INFINEON		控制器
页数	文件大小	规格书
10页	68K
描述
5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH TRIPLE 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

IRU3027 数据手册

Data Sheet No. PD94146

IRU3027

5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC

WITH TRIPLE LDO CONTROLLER

FEATURES

DESCRIPTION

Designed to meet VRM 9.0 specification for next

generation microprocessors

The IRU3027 controller IC is specifically designed to meet

VRM 9.0 specification for next generation microproces-

sor applications requiring multiple on-board regulators.

The IRU3027 provides a single chip controller IC for the

Vcore, three LDO controllers, one with an automatic se-

lect pin that connects to the Type Detect pin of the AGP

slot for the AGP VDDQ supply, one for GTL+ and the other

for the 1.8V chip set regulator as required for the next

generation PC applications. The IRU3027 is designed to

use either bipolar transistors for VOUT3(1.5V) and

VOUT4(1.8V). No external resistor divider is necessary

for any of the regulators. The switching regulator fea-

tures a patented topology that in combination with a few

external components as shown in the typical applica-

tion circuit, will provide well in excess of 20A of output

current for an on-board DC-DC converter while automati-

cally providing the right output voltage via the 5-bit inter-

nal DAC. The IRU3027 also features loss-less current

sensing for both switchers by using the RDS(ON) of the

high side power MOSFET as the sensing resistor, an

output under-voltage shutdown that detects short circuit

condition for the linear outputs and latches the system

off, and a Power Good window comparator that switches

its open collector output low when any one of the out-

puts is outside of a pre-programmed window.

On-Board 5-Bit DAC programs the output voltage

from 1.075V to 1.850V in 25mV steps

Linear Regulator Controller On-Board for 1.8V

Provides single chip solution for Vcore, GTL+,

AGP bus, and 1.8V

Automatic Voltage Selection for AGP Slot VDDQ

Supply

Linear Regulator Controller On-Board for 1.5V

GTL+ Supply

Loss-less Short Circuit Protection for all Outputs

Synchronous operation allows maximum effi-

ciency

Patented architecture allows fixed frequency

operation as well as 100% duty cycle during

dynamic load

Minimum Part Count

Soft-Start

High current totem pole driver for direct driving of

the external power MOSFET

Power Good function monitors all outputs

Over-Voltage Protection Circuitry protects the

switcher output and generates a fault output

APPLICATIONS

Total power solution for next generation Intel

processor application

AMD K7 Low Cost Solution

TYPICAL APPLICATION

3.3V

LINEAR

CONTROL

SWITCHER

CONTROL

VOUT1

OUT

IRU3027

LINEAR

CONTROL

LINEAR

CONTROL

VOUT

VOUT4

Figure 1 - Typical application of IRU3027.

PACKAGE ORDER INFORMATION

TA (8C)

DEVICE

PACKAGE

0 To 70

IRU3027CW

28-Pin Plastic SOIC WB

Rev. 1.5

07/17/02

www.irf.com

12 3 4 5 6 7...10

中文翻译

下载PDF

与IRU3027相关器件

型号	品牌	获取价格	描述	数据表
IRU3027CW	INFINEON	获取价格	5-BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH TRIPLE LDO CONTROLLER
IRU3027CWPBF	INFINEON	获取价格	Switching Controller, 217kHz Switching Freq-Max, PDSO28, PLASTIC, SOIC-28
IRU3033	INFINEON	获取价格	8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC
IRU3033CS	INFINEON	获取价格	8-PIN PWM SWITCHER AND LINEAR CONTROLLER IC
IRU3033CSPBF	INFINEON	获取价格	Switching Controller,
IRU3033CSTR	INFINEON	获取价格	暂无描述
IRU3033CSTRPBF	INFINEON	获取价格	Battery Charge Controller, Voltage-mode, PDSO8,
IRU3033CW	INFINEON	获取价格	Switching Regulator/Controller, Voltage-mode, PDSO8,
IRU3034	INFINEON	获取价格	8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING
IRU3034CS	INFINEON	获取价格	8-PIN PWM SWITCHER CONTROLLER IC WITH CURRENT LIMITING

与IRU3027相关文章

摩尔斯微电子在美国约书亚树国家公园测试 Wi-Fi HaLow
2024-09-18

6
贸泽上架Tallysman TW5386智能GNSS天线
2024-09-18

6
SL74HC10N：高性能三输入与非门解析
2024-09-03

84
AIC1781A 电池充电控制器深度解析
2024-09-03

78

产品中心

服务支持

精选活动

关于我们

帮助中心

IRU3027

IRU3027 数据手册

与IRU3027相关器件

与IRU3027相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

IRU3027

IRU3027 数据手册

与IRU3027相关器件

与IRU3027相关文章

您还可以找

您在本页遇到什么问题？