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dc12v power supply step-down 5v 3.3v module

Overview

This driver board can convert the DC005 terminal 12v power supply to 5v and 3.3v DC power supply. The LM1117 step-down chip is used for voltage reduction and voltage stabilization. The 3D-printed shell is carried out using 3D Monkey, which has achieved good results and has been verified.
The onboard standard USB port, microUSB port, DC terminal and pin header are used for DC power transmission. The voltage is reduced through lm117. In order to prevent the conversion temperature from 12v to 3.3v from being too high, this project performs two voltage reductions. First, reduce the voltage of 12V to 3.3V. Press it to 5v, then step down the 5v to 3.3v. The voltmeter and oscilloscope test results are normal.

Design Files

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Update:2025-06-18 22:23:02

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