参数资料
型号: IR3081MPBF
厂商: International Rectifier
文件页数: 1/40页
文件大小: 0K
描述: IC PHASE CONTROLLER 28MLPQ
标准包装: 100
系列: XPhase™
应用: 处理器
电流 - 电源: 11mA
电源电压: 9.5 V ~ 14 V
工作温度: 0°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 28-MLPQ
供应商设备封装: 28-MLPQ(5x5)
包装: 剪切带 (CT)

IR3081PBF
DATA SHEET
XPHASE TM VR 10 CONTROL IC
DESCRIPTION
The IR3081PBF Control IC combined with an IR XPhase TM Phase IC provides a full featured and flexible
way to implement a complete VR 10 power solution. The “Control” IC provides overall system control and
interfaces with any number of “Phase ICs” which each drive and monitor a single phase of a multiphase
converter. The X Phase TM architecture results in a power supply that is smaller, less expensive, and easier
to design while providing higher efficiency than conventional approaches.
The IR3081PBF is intended for VRD or VRM/EVRD 10 applications that use external VCCVID/VTT
circuits.
FEATURES
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6 bit VR 10 compatible VID with 0.5% overall system accuracy
1 to X phases operation with matching phase ICs
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
1
2
OSCDS
VID5
VBIAS
BBFB
21
20
3
4
5
6
7
VID0
VID1
VID2
VID3
VID4
IR3081
CONTROL
IC
EAOUT
FB
VDRP
IIN
OCSET
19
18
17
16
15
Page 1 of 40
10/01 /04
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