LM25116EVAL

Evaluation Board for LM25116 Wide Vin Synchronous Buck Controller

LM25116EVAL

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Overview

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.

Features
  • 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
AC/DC & DC/DC controllers (external FET)
LM25116 6-42V Wide Vin, Current Mode Synchronous Buck Controller
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Evaluation board

LM25116EVAL/NOPB — Evaluation Board for LM25116 Wide Vin Synchronous Buck Controller

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Technical documentation

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Type Title Date
* EVM User's guide AN-1617 LM25116 Evaluation Board (Rev. A) 24 Apr 2013
Certificate LM25116EVAL/NOPB EU Declaration of Conformity (DoC) 02 Jan 2019

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