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DC-DC converter based on XL4015E1 chip 12V-5V step-down circuit

Overview

A step-down circuit based on the XL4015E1 chip: 1. Component parameters are referenced from the official XL4015 DEMO board manual: https://www.xlsemi.com/products_DC_DC_buck_mv.html 2. Circuit schematic design is referenced from the official XL4015 DEMO board manual and Teacher Tang's lectures on the electronics competition on Bilibili. 3. Layout and routing design are referenced from Teacher Tang's lectures on the electronics competition on Bilibili:
【Open Source XL4015 Schematic and PCB, Step-by-Step Guide to Drawing XL4015 Schematic and PCB, Essential for Electronics Competitions... Yangtze University】 https://www.bilibili.com/video/BV1Bm4y157a7/?share_source=copy_web&vd_source=8812782178457230c0ef3ee575e5a0e4

After testing, it can stably output 4-5V. Under no load conditions, after reaching 5V, it gradually decreases by 0.01V.

The original intention of this project was to record my learning process. I also hope that experts can offer suggestions or opinions, and I will learn from everyone and continue to learn.

Design Files

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-27 13:42:00

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