Dual Phase Synchronous Buck Converter for 40 A Vcore Rail Reference Design
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Key Document


The PMP20054 converts a 5 V input to a 0.85 V output @ 40 A (2 Phase) using the TPS40322. The output capacitors are all ceramic for a cost effective and small solution.

  • Low Vin design
  • High power dual phase output
  • All ceramic capacitors on input/output
  • Small solution size

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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)
Vin (Min) (V)4.5
Vin (Max) (V)5.5
Vout (Nom) (V).85
Iout (Max) (A)40
Output Power (W)34
Input TypeDC
TopologyBuck- Multiphase

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD86360Q5D  25-V, N channel synchronous buck NexFET™ power MOSFET, SON 5 mm x 6 mm power block, 50 A  MOSFETs  Sample & Buy Not Available
TPS40322  Dual Output or Two-phase Synchronous Buck Controller  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD86360Q5D LSON-CLIP (DQY)| 8 Download Download
TPS40322 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1845 07 Sep 2016
Design files (5)
Title Type Size (KB) Date
ZIP 265 07 Sep 2016
ZIP 628 07 Sep 2016
PDF 1148 07 Sep 2016
PDF 63 07 Sep 2016
PDF 344 07 Sep 2016

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