IR3581

Dual Loop, 6+1 multiphase Intel VR12 and VR12.5 PWM controller for high efficiency, highly accurate VR solutions

ParametricIR3581
Moisture Sensitivity Level2
Auto-PSI/DPCYes
Phases7.0
TechnologyDCIC
Configuration6 + 1 Multiphase
InterfacesI2C, PMBus, SMBus
OverClockingYes
PackageQFN 6 x 6 48-Pin
Processor TypeCPU / GPU
QualificationIndustrial
VGDYes
Voltage Outputs2.0
Sales Product NameIR3581
OPNIR3581MTRPBF
Product Statusactive
Package NameQFN 6X6 48L
Completely lead freeno
Halogen freeyes
RoHS compliantyes
Packing Size3000
Packing TypeTAPE & REEL
Moisture Level2
Benefits:
  • Ultra Low Quiescent Power Dual output 6+1 phase PWM Controller
  • Intel® VR12, VR12.5 and Memory VR modes
  • Overclocking and Gaming Modes
  • PVI GPU VR mode
  • Switching frequency from 194kHz to 2MHz per phase in 56 steps
  • IR Efficiency Shaping Features including Variable Gate Drive, Dynamic Phase Control and Automatic Power State Switching
  • Programmable 1-phase or 2-phase operation for Light Loads and Active Diode Emulation for Very Light Loads
  • IR Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost
  • Auto-Phase Detection with PID Coefficient autoscaling
  • Fault Protection: OVP, UVP, OCP, OTP, CFP
  • I2C/SMBus/PMBus system interface for reporting of Temperature, Voltage, Current and Power telemetry for both loops
  • Multiple Time Programming (MTP) with integrated charge pump for easy non-volatile programming
  • Compatible with 3.3V tri-state drivers and IR ATL mode drivers
  • +3.3V supply voltage -40°C to 85°C ambient operation
  • Pb-Free, RoHS, 6x6mm 48-pin, 0.4mm pitch QFN
Data Sheet
TitleSizeDateVersion
Data Sheet - IR3581,EN241 KB29 三月 2014
Product Selection Guide
TitleSizeDateVersion
NEW! Power Management Selection Guide 2016EN4.7 MB22 二月 201600_00
EN IR3581
EN IDV20E65D1