Mini 360 DC-DC Step Down Buck Converter Module

Mini 360 DC-DC Step Down Buck Converter Module – Overview

The Mini 360 DC-DC Step Down Buck Converter Module is a compact, high-efficiency voltage regulator based on the MP2307 switching IC. It steps higher DC voltages down to a stable lower voltage for microcontrollers, sensors, LEDs and portable electronics. Despite its tiny 17 mm x 11 mm footprint, the module can deliver up to 1.8A with proper cooling while providing built-in thermal and short-circuit protection.

Mini 360 Buck Converter Photo

Key Specifications

• Input Voltage: 4.75V to 23V DC
• Output Voltage: 1V to 17V DC (adjustable)
• Output Current: up to 1.8A (recommended <= 1.2A for continuous stable operation)
• Efficiency: up to 95% (depends on input/output differential and load)
• Switching Frequency: 340 kHz (MP2307)
• Size: 17 mm x 11 mm x 4 mm (approx.)
• Protections: built-in thermal shutdown and short-circuit protection
• Ultra-compact PCB for space-constrained designs

Features and Benefits

• Small form factor lets you integrate reliable voltage regulation into portable and embedded projects.
• High-efficiency switching regulator reduces heat and extends battery life in battery-powered applications.
• Adjustable output from 1V gives flexibility for powering various microcontrollers and modules.
• Protection features help prevent damage from overheating and short circuits.
• Wide input range supports common battery chemistries and supply rails, including Li-Ion and multi-cell packs.

Typical Applications

• Power supply for Arduino, ESP8266, ESP32, Raspberry Pi Pico, STM32 and other microcontrollers
• Battery-powered gadgets and Li-Ion/Li-Po packs
• Robotics, IoT devices and sensor nodes
• LED drivers, portable electronics and DIY power banks
• General step-down voltage regulation in compact electronics

Wiring, Adjustment and Installation Tips

• Connections: VIN and GND to input source, VOUT and GND to load. Observe polarity to avoid damage.
• Adjust output using the onboard potentiometer while measuring the output with a reliable multimeter.
• For best regulation and reduced noise, place input and output decoupling capacitors close to the module if your design permits.
• When drawing near the 1.8A peak rating, ensure adequate heat dissipation. For continuous currents above 1.2A, add airflow or a heatsink to improve thermal performance.
• Avoid large VIN to VOUT differences at high load to reduce stress and heat generation on the module.

Performance Notes and Safety

• Actual efficiency depends on input voltage, output voltage and load current. Typical peak efficiency is around 95% under ideal conditions.
• Short-circuit and thermal protection safeguard the module but should not replace proper fuse or current-limiting measures in critical designs.
• Always verify voltage adjustment before connecting sensitive electronics.

Ordering Information and Compatibility

The Mini 360 Buck Converter Module is ideal for hobbyists, makers and engineers looking for a compact DC-DC step-down solution. It integrates easily on breadboards, PCBs and in custom enclosures. Use it to power microcontrollers, sensors and low-power peripherals from higher-voltage battery packs or supply rails.

Note: Images are for illustration purposes only.