Evaluation Board for LM25116 Wide Vin Synchronous Buck Controller
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The LM25116 evaluation board is designed to provide the design engineer with a fully functional power converter based on Emulated Current Mode Control to evaluate the LM25116 controller IC. The evaluation board provides a 5V output with a 7A current capability. The wide input voltage ranges from 7V to 42V. The design operates at 250kHz, a good compromise between conversion efficiency and solution size. The printed circuit board consists of 4 layers, 2 ounce copper top and bottom, 1 ounce copper internal layers on FR4 material with a thickness of 0.06 inches. This application note contains the evaluation board schematic, Bill-of-Materials (BOM) and a quick setup procedure. Refer to the LM25116 datasheet for complete circuit design information.

  • Emulated peak current mode
  • Wide operating range up to 42V
  • Low IQ Shutdown (<10µA)
  • Drives standard or logic level MOSFETs
  • Robust 3.5A peak gate drive
  • Free-run or synchronous operation to 1MHz
  • Optional diode emulation mode
  • Programmable output from 1.215V to 36V
  • Precision 1.5% voltage reference
  • Programmable current limit
  • Programmable soft-start
  • Programmable line under-voltage lockout
  • Automatic switch to external bias supply
  • TSSOP-20EP exposed pad
  • Thermal shutdown

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Evaluation Board for LM25116 Wide Vin Synchronous Buck Controller


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Technical documentation
User guides (1)
Title Type Size (KB) Date
PDF 386 24 Apr 2013
More literature (1)
Title Type Size (KB) Date
PDF 39 02 Jan 2019

TI Devices (1)

Part Number Name Product Family
LM25116  6-42V Wide Vin, Current Mode Synchronous Buck Controller  Step-down (buck) regulators 

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