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IR3081

DATA SHEET

XPHASE

TM

VR 10.0 CONTROL IC

DESCRIPTION

The IR3081 Control IC combined with an IR

XPhase

TM

Phase IC provides a full featured and flexible way

to implement a complete VR 10.0 power solution. The 鈥淐ontrol鈥?IC provides overall system control and

interfaces with any number of 鈥淧hase ICs鈥?which each drive and monitor a single phase of a multiphase

converter. The XPhase

TM

architecture results in a power supply that is smaller, less expensive, and easier

to design while providing higher efficiency than conventional approaches.

The IR3081 is intended for VRD or VRM/EVRD 10.0 applications that use external VCCVID/VTT circuits.

FEATURES

鈥?/div>

6 bit VR 10.0 compatible VID with 0.5% overall system accuracy

Programmable Dynamic VID Slew Rate

No Discharge of output capacitors during Dynamic VID step-down (can be disabled)

+/-300mV Differential Remote Sense

Programmable 150kHz to 1MHz oscillator

Programmable VID Offset and Load Line output impedance

Programmable Softstart

Programmable Hiccup Over-Current Protection with Delay to prevent false triggering

Simplified Powergood provides indication of proper operation and avoids false triggering

Operates from 12V input with 9.1V Under-Voltage Lockout

6.8V/5mA Bias Regulator provides System Reference Voltage

Enable Input

Small thermally enhanced 28L MLPQ package

PACKAGE PINOUT

28

27

26

25

24

ENABLE

PWRGD

23

LGND

SS/DEL

RMPOUT

VCC

N/C

22

1

2

3

4

5

6

7

OSCDS

VID5

VID0

VID1

VID2

VID3

VBIAS

BBFB

21

20

19

18

17

16

15

IR3081

CONTROL

IC

VOSNS-

EAOUT

FB

VDRP

IIN

OCSET

VID4

TRM1

TRM2

ROSC

13

TRM3

10

11

12

TRM4

Page 1 of 20

14

8

9

VDAC

9/1/03

標(biāo)準(zhǔn)包裝
3,000
類別
集成電路 (IC)
家庭
PMIC - 電源管理 - 專用
系列
XPhase™
應(yīng)用
處理器
電流 - 電源
11mA
電源電壓
9.5 V ~ 14 V
工作溫度
0°C ~ 100°C
安裝類型
表面貼裝
封裝/外殼
28-MLPQ
供應(yīng)商設(shè)備封裝
28-MLPQ（5x5）
包裝
帶卷 (TR)

IR3081MTR相關(guān)型號PDF文件下載

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