DIY Portable 1.8V Power Supply (Reference Design)

Overview

Portable 1.8V power supply for any mobile or battery powered DIY project. For use with Arduino. This board is designed for small projects where power is a concern, while still having a high output current (over 2 amps!) It is powered by a single Li-Ion battery and charges via a micro USB port. When off, the board draws less than 2µA! Features automatic low voltage shutdown and short circuit protection. Red and green LEDs provide immediate information about the battery. Green LED on - Power on Green LED on, red flashing - On when battery is low Green LED on, red flashing rapidly - On when battery is low Green LED on/off - On and charging Red LED on/off - Off and charging Red LED on - Off and charging

Design Files

DIY Portable 1.8V Power Supply.zip

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:2025-06-19 18:28:20

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