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IR3506

Part Number	IR3506
Manufacturer	International Rectifier
Description	DDR & VTT PHASE
Published	Feb 11, 2010
Detailed Description	IR3506 DATA SHEET XPHASE3TM DDR & VTT PHASE IC DESCRIPTION The IR3506 Phase IC combined with IR3522 xPHASE3 Control ICs ...
Datasheet	IR3506 PDF File

Overview

IR3506 DATA SHEET XPHASE3TM DDR & VTT PHASE IC DESCRIPTION The IR3506 Phase IC combined with IR3522 xPHASE3 Control ICs implements a full featured DDR3 power solution.
The IR3522 provides control functions for both the VDDR and VTT power rails and interfaces with any number of IR3506 Phase ICs each driving and monitoring a single phase to power any number of DDR3 TM DIMMs.
The xPHASE3 architecture delivers a power supply that is smaller, more flexible, and easier to design while providing higher efficiency than conventional approaches.
TM FEATURES • • • • • • • • • • • • • • • • Power State Indicator (PSI) interface provides the capability to maximize efficiency at light loads Anti-bias circuitry 7V/2A gate drivers (4A GATEL sink current) Support loss-less inductor current sensing Phase delay DFF bypassed during PSI assertion mode to improve output ripple performance Over-current protection during PSI assertion mode operation Integrated boot-strap synchronous PFET Only four IC related...

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