12V Input, 1V/45A Compact Point-of-Load PMBus Module with Dual Output Option Reference Design
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PMP8342 is a compact 45A POL solution in 0.72" by 1.20" size, with flexible configuration for  single 45A or dual 23A rails. It is suitable for  ASIC Processors for Telecom infrastructure, FPGA for Industry and Telecom applications, Generic High Current POL, or Generic Power with Dual output Configuration. It features TPS40425, 2-phase PMBUS Buck driverless controller with a compact power module which integrates inductors, FETs, and drivers to achieve a high efficiency, compact-size solution.

  • Compact 45A PoL solution in 0.72" by 1.2 size (18.3mm x30.5mm)
  • Flexible configurations for single 45A or dual 23A rails
  • High efficiency 87.5% at 1V/45A, 400kHz
  • PMBUS interface for configuration and Telemetry
  • This design is fully tested

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Design Files

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(Output Voltage 1)
Vin (Min) (V)7
Vin (Max) (V)13.2
Vout (Nom) (V)1
Iout (Max) (A)45
Output Power (W)45
Input TypeDC
TopologyBuck- Multiphase
Buck- Synchronous
Designed forASIC

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS40425  Dual Output, 2-Phase, Stackable PMBUS Synchronous Buck Driverless Controller  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS40425 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 534 09 Feb 2015
Design files (6)
Title Type Size (KB) Date
ZIP 348 09 Feb 2015
ZIP 741 09 Feb 2015
PDF 1960 09 Feb 2015
PDF 202 09 Feb 2015
PDF 112 09 Feb 2015
PDF 267 09 Feb 2015

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