12V Input, 0.9V/90A Solution by Stacking Two 45A Modules Reference Design with PMBus
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PMP8411 stacks two compact 2-phase 45A converters into a 4-phase 90A POL solution. It is suitable for the 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, multi-phase solution.

  • Stackable configuration scales up the output
  • Compact 45A PoL solution in 0.7" by 1.22" size (17.8mm x31.1mm)
  • High efficiency 85.5% at 0.9V/90A, 400kHz
  • PMBUS interface for configuration and Telemetry
  • Multiphase configuration minimizes input and output ripple
  • This design is fully tested

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(Output Voltage 1)
Vin (Min) (V)7
Vin (Max) (V)13.2
Vout (Nom) (V).9
Iout (Max) (A)90
Output Power (W)81
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)  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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User guides (1)
Title Type Size (KB) Date
PDF 893 10 Feb 2015
Design files (6)
Title Type Size (KB) Date
ZIP 347 10 Feb 2015
ZIP 803 10 Feb 2015
PDF 2405 10 Feb 2015
PDF 246 10 Feb 2015
PDF 112 10 Feb 2015
PDF 346 10 Feb 2015

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