135W Single-Phase Synchronous Boost Converter Reference Design
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Key Document


The PMP9431 reference design is a high-efficiency single-phase synchronous boost converter using the LM5122 controller IC. The design accepts an input voltage of 12Vin to 50Vin and provides an output of 54Vout capable of supplying 2.5A of current to the load.

  • High efficiency design
  • High power density
  • Synchronizable to external clock
  • Hiccup-mode overload protection
  • Precision voltage reference accuracy of +/-1%

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Schematic/Block Diagram

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Design Files

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(Output Voltage 1)
Vin (Min) (V)12
Vin (Max) (V)50
Vout (Nom) (V)54
Iout (Max) (A)2.5
Output Power (W)135
Input TypeDC
TopologyBoost- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5122  3-65V Wide Vin, Current Mode Synchronous Boost Controller with Multiphase Capability  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5122 Download Download
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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 1584 26 Aug 2015
Design files (7)
Title Type Size (KB) Date
ZIP 209 26 Aug 2015
ZIP 496 26 Aug 2015
PDF 342 26 Aug 2015
PDF 146 26 Aug 2015
PDF 111 26 Aug 2015
PDF 84 26 Aug 2015
PDF 178 26 Aug 2015

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