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PW5100 - Low-power 3.7L to 5L solution

Overview

Note: The image shown is from the first draft of the PCB design. The actual released version has been optimized and may differ slightly from the physical product. Dimensions: 16mm x 8mm.
When used for lithium battery boosting, the module can operate continuously at 300mA output, with a maximum of 450mA. It is suitable for retrofitting low-power devices powered by three dry cell batteries, such as gas meters.
The module's battery-side static current is only 10µA, and the annual battery consumption is less than 100mAh. The module's conversion efficiency is no less than 80%.

PCB design files are attached and can be used directly for PCB fabrication.
BOM: Ceramic capacitors are used, with low static current. Components include: PW5100-50 (1 x 3.3µH), 0420 (1 x 10µF), 0805 (1 x 22µF), and 0805 (1 x 1 x 0805).

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:2026-03-28 10:36:35

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