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IR3081MTR Datasheet

  • IR3081MTR

  • XPHASE VR 10.0 CONTROL IC

  • 20頁

  • IRF

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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
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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

IR3081MTR 產(chǎn)品屬性

  • 3,000

  • 集成電路 (IC)

  • PMIC - 電源管理 - 專用

  • XPhase™

  • 處理器

  • 11mA

  • 9.5 V ~ 14 V

  • 0°C ~ 100°C

  • 表面貼裝

  • 28-MLPQ

  • 28-MLPQ(5x5)

  • 帶卷 (TR)

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