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Ultra-small 3V3 charging and discharging voltage regulator board

Overview

TP4056 3V3 Charge/Discharge Integrated Board
Introduction:
This ultra-small 3V3 charge/discharge regulator board measures only 18mm*16mm, providing a stable 3.3V output. Suitable for low-power embedded applications, it's small and adorable!
Information
: Size: 18mm*16mm; Input: 5V 1A; Output: 3µA/3µA (maximum 800mA, 3.3V); Solution: Charge/discharge (TP4056), voltage regulation (662K). The solution has been tested and is 100% feasible. It can be directly custom-built using Gerber, requiring fewer components, resulting in low cost and easy soldering (simply apply solder paste, place the components, and heat; be careful not to solder components crookedly, as it will look unsightly!).
Application Scenarios
: Power supply for microcontrollers and other applications requiring 3.3V. However, please note that due to the small size of the board, avoid contact between the GND pin and other areas (including the Type-C metal shield and nearby pads).

Design Files

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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:2026-03-26 16:53:00

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