Powering Next Generation Processors

Broad portfolio of high current system chipset solutions

As CPU current requirements increase to enable next generation AI and networking workloads, DC-DC Voltage Regulators need to deliver greater than 500 A to the load.

Infineon’s broad portfolio of high current system chipset solutions enable next generation CPUs, GPUs, FPGA and ASICs used in high-end AI servers and Datacom applications.

First true 1000 A voltage regulator solution

Infineon introduces industry’s first 16-phase digital PWM multiphase controller, XDPE132G5C, to its broad portfolio of high current system chipset solutions that enables currents of 500 - 1000 Amps and higher for next generation CPUs, GPUs, FPGA and ASICs used in high-end AI servers and 5G Datacom applications.

The XDPE132G5C is packaged in a 7mm x 7mm 56 pin QFN to accommodate 16 phases, employs a full digital and programmable loadline, and is PMBUS1.3/AVS compliant delivering a comprehensive suite of telemetry features. Paired with TDA21475, the industry’s most thermally efficient integrated current sense power stage, the XDPE132G5C controller can efficiently deliver over 1000 A.

Key features

  • 16 phase single or up to 8+8 dual loop configurable PWM controller
  • Phase fault protection flag with auto-compensation
  • Telemetry registers with real-time monitoring
  • Cycle-by-cycle phase current limit
  • Analog "IMON" for output current reporting
  • 200 kHz to 2 MHz switching frequency per phase
  • PB-free, halogen free, RoHS

Key benefits

  • Adaptive Transient Algorithm (ATA) minimizes output bulk capacitors and system costs
  • High efficiency

Target applications

  • AMD SVI2 GPU and CPU processors
  • nVIDIA GPU processors
  • High performance ASIC processors with AVSBus
  • High performance Ethernet switching and routing ASSPs

Product portfolio

Multiphase controller portfolio

Product Name Package

Configurable

output rails

Phase

configuration

Vout-max [V]

Switching

frequency [MHz]
XDPE132G5C PQFN 7 x 7 Dual rail 16, 8+8 3.3 Up to 2
IR35223 PQFN 6 x 6 Dual/single rail 10, 5+5 3.3 Up to 2

 

Power stage portfolio

Product Name Package Vin [V]

Vout [V]

Switching

frequency [MHz]
TDA21475 PQFN 5 x 6 (exposed top) 4.25 to 16 0.25 to 5.5 1.5
TDA21472 PQFN 5 x 6 4.5 to 15 0.25 to 5.5 1.0

Available on request. Further portfolio available, please contact your local sales counterpart.

Available documents

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