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IR3080PBF

International Rectifier
Part Number IR3080PBF
Manufacturer International Rectifier
Description XPHASETM VRD10 CONTROL IC
Published Jun 8, 2007
Detailed Description Data Sheet No. PD94705 revB IR3080PbF XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT DESCRIPTION The IR3080 Co...
Datasheet PDF File IR3080PBF PDF File

IR3080PBF
IR3080PBF

Overview
Data Sheet No.
PD94705 revB IR3080PbF XPHASETM VRD10 CONTROL IC WITH VCCVID & OVERTEMP DETECT DESCRIPTION The IR3080 Control IC combined with an IR XPhaseTM Phase IC provides a full featured and flexible way to implement a complete VRD 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 XPhaseTM architecture results in a power supply that is smaller, less expensive, and easier to design while providing higher efficiency than conventional approaches.
The IR3080 is intended for desktop applications and includes the VCCVID and VRHOT functions required for proper system operation.
FEATURES • • • • • • • • • • • • • • • • • 6 bit VR10 compatible VID with 0.
5% overall system accuracy 1 to X phases operation with matching phase ICs On-chip 700Ω VID Pull-up resistors with VID pull-up voltage input 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 1.
2V @ 150mA VCCVID Linear Regulator with Full Protection VCCVID Powergood with Programmable delay gates converter operation Programmable Converter Over-Temperature Detection and Output Small thermally enhanced 32L MLPQ package www.
DataSheet4U.
com APPLICATION CIRCUIT RVCC 10 ohm 12V VRHOT POWERGOOD CVIDDEL CSS/DEL CVCC 0.
1uF VID POWERGOOD RHOTSET2 32 30 31 29 28 27 26 VIDDEL SS/DEL HOTSET VRHOT RMPOUT VIDPGD PWRGD LGND 25 RHOTSET1 RMPOUT VCC VBIAS VCCVID 1 2 VIDFB 24 23 22...


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