High Efficiency Dual 30A or Single 60A Digital Point-of-Load Reference Design
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Key Document


The PMP9042 reference design combines digital TPS40428 controller with CSD95378B for a dual 30A or single 60A point-of-load . The design is size-optimized in a tiny 1"x1" area (25.4mm x 25.4mm). The PMP9042 demonstrates a  high efficiency, high density point-of-load with excellent thermal performance for high current applications.

  • 18V to 14V in, 1V/30A and 1V/30A out (or 1V/60A)
  • Peak efficiency 92.1% at 1Vout, 500kHz
  • Excellent thermal performance: 40C temperature rise at dual 1V/30A with 200LFM airflow
  • Total solution size: 1" x 1" (25.4mm x 25.4mm)
  • PMBus enabled margining and sequencing

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Schematic/Block Diagram

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Design Guide

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Design Files

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(Output Voltage 1)
(Output Voltage 2)
Vin (Min) (V)88
Vin (Max) (V)1414
Vout (Nom) (V)11
Iout (Max) (A)3030
Output Power (W)3030
Input TypeDCDC
TopologyBuck- SynchronousBuck- Synchronous

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD95378BQ5M  60A Synchronous Buck NexFET™ Smart Power Stage with TAO offset  MOSFETs  Sample & Buy Not Available
TPS40428  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)
CSD95378BQ5M LSON-CLIP (DQP)| 12 Download Download
TPS40428 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 2021 04 Dec 2017
Design files (5)
Title Type Size (KB) Date
ZIP 172 04 Dec 2017
PDF 379 04 Dec 2017
PDF 41 04 Dec 2017
PDF 68 04 Dec 2017
PDF 142 04 Dec 2017

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