LM5175EVM Wide Vin Single Inductor Buck-Boost Controller Evaluation Module


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The LM5175EVM is a four-switch non-inverting buck-boost converter based on the LM5175 controller.  This converter is designed to operate with input voltage from 6V to 42V and provide a regulated 12V output for  load current up to 6A.  The high efficiency transition region control method of the LM5175 produces peak efficiency of 98.4% with an output voltage of 12V.  The switching frequency is set at 300kHz and can be synchronized by an external clock signal.

  • Step-up or step-down DC-DC conversion from a 6V to 42V input supply
  • Regulated 12V output with load current rating up to 6A
  • Switching frequency set at 300KHz with optional synchronization to an external clock
  • Hiccup mode fault protection and frequency dithering selectable through test points
  • Optional average input or output current limiting supported with minor board changes
Buck-boost & inverting controllers (external switch)
LM34936-Q1 Automotive, 30-V wide VIN synchronous 4-switch buck-boost controller LM5175 42V Wide Vin 4-Switch Synchronous Buck-Boost Controller LM5175-Q1 42-V wide VIN 4-switch synchronous buck-boost controller, AEC-Q100 qualified
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Evaluation board

LM5175EVM — LM5175EVM Wide Vin Single Inductor Buck-Boost Controller Evaluation Module

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Design files

SNVC179.ZIP (3329 KB)

Technical documentation

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Type Title Date
Certificate LM5175EVM EU Declaration of Conformity (DoC) 02 Jan 2019
EVM User's guide LM5175 4-Switch Buck-Boost EVM User Guide (Rev. A) 04 Jun 2018
Data sheet LM5175 42-V Wide VIN Synchronous 4-Switch Buck-Boost Controller datasheet (Rev. A) PDF | HTML 02 May 2016

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