48V Vin Nominal, 100V Vout @ 1A Single-Phase Synchronous Boost Converter
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PMP7933 is a single-phase synchronous boost converter using the LM5122 controller IC.  The design accepts an input voltage of 48Vin +/-5% and provides an output voltage of 100Vout capable of supplying a maximum of 1A of current to the load.  The design was built on the PMP7896 revB PCB.

  • Synchronous boost converter enables high efficiency of 93%
  • Low temperature operation, no additional cooling needed
  • Operates at 48V telecom bus voltage
  • Board was designed and tested for 100W operation.

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Schematic/Block Diagram

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Design Files

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(Output Voltage 1)
Vin (Min) (V)45.5
Vin (Max) (V)50.5
Vout (Nom) (V)100
Iout (Max) (A)1
Output Power (W)100
Input TypeDC
TopologyBoost- Synchronous

TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5122-Q1  Automotive, 3-V to 65-V wide VIN, current mode synchronous boost controller with multiphase  Step-up (boost) regulators  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5122-Q1 Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 674 24 Oct 2014
Design files (3)
Title Type Size (KB) Date
ZIP 446 24 Oct 2014
PDF 23 24 Oct 2014
PDF 112 24 Oct 2014

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