Ultra-Small DC-DC 5V 3A BEC Power Supply – Buck Step-Down Module for RC, Arduino, and DIY Projects
This ultra-compact DC-DC Buck Converter efficiently steps down voltage to a stable 5V output at up to 3A current. Ideal for RC models, drones, Arduino, ESP32, and portable electronics, the BEC (Battery Eliminator Circuit) module ensures reliable 5V power delivery in tight spaces.
 
Key Features:
Stable 5V Output at 3A
Delivers a regulated 5V output for powering microcontrollers, sensors, and modules.
High Current Output
Supports loads up to 3A—ideal for motors, servos, and high-drain devices.
Ultra-Small Form Factor
Space-saving design perfect for compact or mobile applications.
High Conversion Efficiency
Efficient buck step-down regulation reduces heat and power loss.
BEC Power Supply
Functions as a Battery Eliminator Circuit in RC planes, cars, and drones.
 
Applications:
RC planes, cars, and drones
Arduino and ESP32 projects
DIY electronics and robotics
Battery-powered embedded systems
LED drivers and low-voltage systems
Power supply for sensors and servos
 
Package Includes:
1 × Ultra-Small DC-DC 5V 3A Buck Step-Down Converter Module
 
Specifications:
Input Voltage: 6V to 24V DC
Output Voltage: 5V DC (fixed)
Output Current: Up to 3A (with heatsinking)
Circuit Type: Buck (step-down)
BEC Functionality: Yes
Efficiency: Up to 90%
Operating Frequency: ~1 MHz
Connection: 3-pin (VIN, GND, VOUT)
 
Dimensions:
Length: 17 mm
Width: 11 mm
Height: 4 mm
 
Weight: 1 g
 
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