DC-DC 12V To 3.3V 5V Buck Step down Power Supply Module For Arduino

A compact DC-DC buck converter module that provides regulated 3.3V and 5V outputs from a 6-12V input source. Ideal for powering Arduino, ESP8266, sensors, and other low-voltage electronics from a 12V power supply or battery.

The module also provides a direct 12V pass-through output, giving you three voltage rails from a single input. A red LED indicates power status.

Key Features

• Triple Output – Regulated 3.3V, 5V, and 12V pass-through from one input
• Wide Input Range – Accepts 6-12V DC input
• High Accuracy – ±0.05V output voltage tolerance
• 800mA Output Current – Sufficient for most microcontroller projects
• Power Indicator – Red LED shows module status
• Compact Size – 45 × 45mm PCB footprint

Specifications

• Input Voltage: 6-12V DC
• Output Voltages: 3.3V, 5V, 12V (pass-through)
• Output Accuracy: ±0.05V
• Max Output Current: 800mA
• Minimum Dropout: 1V (input must be ≥1V above output)
• PCB Dimensions: 45 × 45mm

Ideal For

• Arduino and microcontroller projects
• Powering 3.3V and 5V devices from 12V batteries
• Robotics and automotive electronics
• Multi-voltage breadboard power supplies

Package Contents

• 1× DC-DC Buck Step-Down Power Supply Module