Compact Digital Quad 4/4/2/2A Point-of-load Reference Design for Space Constrained Applications
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Key Document


The PMP11414 reference design features TPS65400 quad 4/4/2/2A output point-of-load in a tiny 0.65"x0.875" solution size (16.5mmx22.2mm). TPS65400 fully integrates four buck regulators into a small 7mmx7mm QFN package. It also has PMBus capability for flexible control and configuration.  The PMP11414 demonstrated high efficiency as well as intelligence for flexible margining and sequencing functions.

  • 7V to 14V in, 1.2Vout @ 4A, 1.8V@4A, 2.5V@2A and 3.3V@2A
  • Total solution size: 0.65"x0.875" (16.5mmx22.2mm)
  • Peak efficiency 91%
  • Switching frequency 500kHz
  • 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)
(Output Voltage 3)
(Output Voltage 4)
Vin (Min) (V)7777
Vin (Max) (V)14141414
Vout (Nom) (V)
Iout (Max) (A)4422
Output Power (W)
TopologyBuck- SynchronousBuck- SynchronousBuck- SynchronousBuck- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS65400  4.5 V to 18 V input, 4 A / 4 A / 2 A / 2 A synchronous quad converter with PMBus/I2C interface  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS65400 Download Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 3111 26 Jan 2016
Design files (5)
Title Type Size (KB) Date
ZIP 171 26 Jan 2016
ZIP 186 26 Jan 2016
PDF 366 26 Jan 2016
PDF 111 26 Jan 2016
PDF 138 26 Jan 2016

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