12Vin Compact Dual 30A Point-of-load with PMBus Using NexFET Power Block Reference Design
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Key Document


The PMP7466 reference design is a compact dual 30A POL solution with PMBus in 1" by 1.075" size (25.4mm x27.3mm). It showcases NexFET power block CSD87350 in high-density PoL. It also adds PMBus capability to high-current rails.  It is easy to configure as dual 30A or single 60A output with resistor options. It is versatile for digital high density high-current power rails (<60A).

  • 8V to 14V in, 2.5V/30A and 1.5V/30A out
  • Peak efficiency 93.7% at 1.5Vout, 300kHz
  • Total solution size: 1"x1.075" (25.4mmx27.3mm)
  • Option for single 60A
  • PMBus enabled margining and sequencing

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Schematic/Block Diagram

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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)2.51.5
Iout (Max) (A)3030
Output Power (W)7545
Input TypeDCDC
TopologyBuck- SynchronousBuck- Synchronous

TI Devices (2)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD87350Q5D  30-V, N channel synchronous buck NexFET™ power MOSFET, SON 5 mm x 6 mm power block, 40 A  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
TPS40422  Dual Output or Multiphase Synchronous Buck Controller with PMBus  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD87350Q5D LSON-CLIP (DQY)| 8 Download Download
TPS40422 Download Download
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 741 14 Dec 2017
Design files (5)
Title Type Size (KB) Date
ZIP 180 14 Dec 2017
PDF 315 14 Dec 2017
PDF 40 14 Dec 2017
PDF 47 14 Dec 2017
PDF 142 14 Dec 2017

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