Evaluation Board for the LM5118 Wide Vin Buck-Boost Controller


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The LM5118 evaluation board is designed to provide the design engineer with a fully functional, Emulated Current Mode Control, buck-boost power converter to evaluate the LM5118 controller IC. The evaluation board provides a 12V output with 3A of output current capability. The evaluation board's wide input voltage range is from 75V to 5V, with operation down to 3V with some component changes. The evaluation board operates at 300 kHz, a good compromise between conversion efficiency, tradeoffs between buck and buck-boost mode requirements, and converter size. The printed circuit board consists of 4 layers with 2 ounce copper top and bottom, and 1 ounce copper on internal layers. The board is constructed with FR4 material. The application note contains the evaluation board schematic, Bill-of-Materials (BOM) and a quick setup procedure. Refer to the LM5118 data sheet and quick start for more complete circuit and design information.

Buck-boost & inverting controllers (external switch)
LM5118 3-75V Wide Vin, Current Mode Non-Synchronous Buck-Boost Controller LM5118-Q1 3-V to 75-V wide VIN, current mode non-synchronous buck-boost controller

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Evaluation board

LM5118EVAL/NOPB — Evaluation Board for the LM5118 Wide Vin Buck-Boost Controller

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Technical documentation

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Type Title Date
* EVM User's guide AN-1819 LM5118 Evaluation Board (Rev. B) Jan. 17, 2014
Certificate LM5118EVAL/NOPB EU Declaration of Conformity (DoC) Jan. 02, 2019
User guide AN-2178 LM5118 Four Switch Conversion (Rev. E) May 06, 2013

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