LM5175RHF Wide VIN 4-Switch Buck-Boost Controller Evaluation Module


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The LM5175RHFEVM-HD demonstrates a compact buck-boost design using the LM5175 high performance 4-switch buck-boost controller. This evaluation module is designed to operate from input voltage range of 5.5 V-42 V and provide a regulated 12 V output with  load current up to 6 A.  The high efficiency transition region control method of the LM5175 produces high efficiency.  The switching frequency is set at 400kHz and can be synchronized to an external clock signal.

  • High power density: 50mm x 43mm, 6-layer PCB with 2oz copper
  • Wide input voltage range of 5.5V to 42V
  • High efficiency, synchronous buck-boost conversion
  • Switching frequency of 400 kHz (adjustable) with optional external synchronization (SYNC)
  • Low EMI signature with optional frequency dithering
Buck-boost & inverting controllers (external switch)
LM5175 42V Wide Vin 4-Switch Synchronous Buck-Boost Controller
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Evaluation board

LM5175RHFEVM-HD — LM5175RHF Wide VIN 4-Switch Buck-Boost Controller Evaluation Module

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Design files

Technical documentation

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Type Title Date
* EVM User's guide LM5175RHF (QFN) EVM User Guide 30 Apr 2016
Certificate LM5175RHFEVM-HD EU Declaration of Conformity (DoC) 02 Jan 2019
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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