12V Input, 1V/45A Compact Point-of-Load PMBus Module with Dual Output Option Reference Design


Design files


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
Output voltage options PMP8342.1
Vin (Min) (V) 7
Vin (Max) (V) 13.2
Vout (Nom) (V) 1
Iout (Max) (A) 45
Output Power (W) 45
Isolated/Non-Isolated Non-Isolated
Input Type DC
Topology Buck- Multiphase^Buck- Synchronous
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDU773.PDF (602 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more


Detailed schematic diagram for design layout and components


Complete listing of design components, reference designators, and manufacturers/part numbers


Detailed overview of design layout for component placement


Files used for 3D models or 2D drawings of IC components

TIDC901.ZIP (348 K)

Design file that contains information on physical board layer of design PCB

TIDRCU4.PDF (1960 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

TPS40425Dual Output, 2-Phase, Stackable PMBUS Synchronous Buck Driverless Controller

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report PMP8342 Test Results Feb. 09, 2015

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