IR3538

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

ParametricIR3538
Moisture Sensitivity Level2
Auto-PSI/DPCYes
Phases8.0
TechnologyDCIC
Configuration7 + 1 Multiphase
InterfacesI2C, PMBus, SMBus
OverClockingYes
PackageQFN 8 x 8 56-Pin
Processor TypeCPU
QualificationIndustrial
VGDYes
Voltage Outputs2.0
Sales Product NameIR3538
OPNIR3538MTRPBF
Product Statusactive
Package NameQFN 8X8 56L
Completely lead freeno
Halogen freeyes
RoHS compliantyes
Packing Size3000
Packing TypeTAPE & REEL
Moisture Level2
Benefits:
  • 8-phase dual output PWM Controller
  • Phases are flexibly assigned between Loops 1 and 2
  • Intel® VR12, AMD® SVI/PVI/G34 and Memory modes
  • Switching frequency: 200kHz to 1.2MHz per phase
  • Variable Gate Drive, Dynamic Phase Control
  • Programmable 1-phase or 2-phase for Light Loads
  • Adaptive Transient Algorithm (ATA) on both loops minimizes output bulk capacitors and system cost
  • Auto-Phase Detection with auto-compensation
  • Per-Loop Protection: OVP, UVP, OCP, OTP, CFP
  • I2C/SMBus/PMBus system interface for telemetry
  • Non-Volatile Memory (NVM) for custom configuration
  • Overclocking and Gaming Mode with Vmax setting
  • Compatible with 3.3V tri-state Drivers
  • +3.3V supply voltage 0°C to 85°C ambient operation
  • Pb-Free, RoHS, 8x8 56 pin QFN packages
Target Applications:
  • Desktop and Workstations
  • MultiPhase Digital Control
  • Servers and Storage
Data Sheet
TitleSizeDateVersion
Data Sheet - CHL8326,EN348 KB09 Jul 2011
Product Selection Guide
TitleSizeDateVersion
NEW! Power Management Selection Guide 2016EN4.7 MB22 Feb 201600_00
EN IR3538
EN IDV20E65D1