The LM3481 SEPIC evaluation board is designed to provide the design engineer with a fully functional power converter solution with two output voltage options. It produces a selectable output voltage of 12 V at 1.25A or 5V at 3A. The switching frequency for the converter is set to 500 kHz. The printed circuit board consists of 2 layers of FR4 material with 2 ounce copper on both layers. This application note contains the evaluation board schematics, Bill-of-Materials (BOM) and a quick setup procedure. Refer to the LM3481 datasheet for complete circuit design information.
5V Output Voltage Option:
12V Output Voltage Option:
The LM3481 Quickstart Calculator for Boost tool supports the initial calculation of the boost power stage and of the necessary external components for a boost converter using LM3481 as regulation IC.
Initial version
| Type | Title | Date | ||
|---|---|---|---|---|
| * | User guide | AN-2094 LM3481 SEPIC Evaluation Board (Rev. A) | 25 Apr 2013 | |
| Certificate | LM3481SEPICEVAL/NOPB EU Declaration of Conformity (DoC) | 02 Jan 2019 | ||
| Certificate | LM3481SEPICEVAL/NO EU Declaration of Conformity (DoC) | 02 Jan 2019 |
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The LM3481 Quickstart Calculator for Boost tool supports the initial calculation of the boost power stage and of the necessary external components for a boost converter using LM3481 as regulation IC.
Initial version