IR3538A

Dual Loop, 7+1 multiphase VR12/AMD PWM controller for high efficiency, highly accurate VR solutions

ParametricIR3538A
Moisture Sensitivity Level2
Auto-PSI/DPCYes
Phases8.0
TechnologyDCIC
Configuration7 + 1 Multiphase
InterfacesI2C, PMBus, SMBus
OverClockingYes
PackageQFN 8 x 8 56-Pin
Processor TypeCPU
QualificationConsumer
VGDYes
Voltage Outputs2.0
Sales Product NameIR3538A
OPNIR3538AMTRPBF
Product Statusactive
Package NameQFN 8X8 56L
Completely lead freeno
Halogen freeyes
RoHS compliantyes
Packing Size3000
Packing TypeTAPE & REEL
Moisture Level2
OPNIR3538AMTYPBF
Product Statusactive
Package NameQFN 8X8 56L
Completely lead freeno
Halogen freeyes
RoHS compliantyes
Packing Size2600
Packing TypeTRAY
Moisture Level2
Benefits:
  • 6-phase dual output PWM Controller
  • Phases are flexibly assigned between Loops 1 and 2
  • Intel® VR12, AMD® 3.4MHz SVI/PVI and Memory modes
  • Overclocking and Gaming Mode with Vmax setting
  • Switching frequency from 200kHz to 1.2MHz per phase
  • IR Efficiency Shaping Features including Variable Gate Drive and Dynamic Phase Control
  • Programmable 1-phase or 2-phase 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 auto-compensation
  • Per-Loop Fault Protection: OVP, UVP, OCP, OTP, CFP
  • I2C/SMBus/PMBus system interface for telemetry of Temperature, Voltage, Current and Power for both loops
  • Non-Volatile Memory (NVM) for custom configuration
  • Compatible with IR ATL and 3.3V Tri-state Drivers
  • +3.3V supply voltage -20°C to 85°C ambient operation
  • Pb-Free, RoHS, 7x7 48-pin and 8x8 56-pin QFN packages
Target Applications:
  • Desktop and Workstations
  • MultiPhase Digital Control
  • Servers and Storage
Data Sheet
TitleSizeDateVersion
Data Sheet - IR3536A,EN491 KB30 Sep 2012
Product Selection Guide
TitleSizeDateVersion
NEW! Power Management Selection Guide 2016EN4.7 MB22 Feb 201600_00
EN IR3538A
EN IDV20E65D1