3-6Vin, 0.6-3.3Vo/6A Pico Module Reference Design
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Key Document


The PMP4481 reference design is designed for telecom application with a DC input of 3V~6V achieving the lowest component count. Detailed data is provided. The output voltage could be modified by resistors over the resistor divider from 0.6V to 3.3V. A typical application is for 0.9V/6A.

  • Low Input and Output Voltage
  • High Efficiency 76% at 0.9Vo with 3.3Vin and 94.3% at 3.3Vo with 5Vin
  • Pre-bias soft start
  • Protection feature OCP, Input UVLO, SCP, PGood
  • High Power Density with lowest component count
  • Small dimensions: 10mmx20mmx3mm

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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)3
Vin (Max) (V)6
Vout (Nom) (V).9
Iout (Max) (A)6
Output Power (W)5.4
Input TypeDC
TopologyBuck- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS54678  2.95V to 6V Input, 6A Synchronous Step-Down SWIFT™ Converter with Hiccup Current Limit  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
TPS54678 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1447 26 Aug 2015
Design files (3)
Title Type Size (KB) Date
ZIP 579 26 Aug 2015
PDF 80 26 Aug 2015
PDF 152 26 Aug 2015

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