MP1584 Mini 3A DC-DC Buck Module

This compact buck converter module delivers efficient, adjustable voltage step-down for a wide range of electronics projects. Built around the MP1584EN high-frequency switching regulator with an integrated high-side MOSFET, it takes a wide range of input voltages and steps them down to a precisely tunable output using an onboard potentiometer. Its small footprint and light weight make it easy to embed directly into enclosures, robots, drones, and portable devices without adding bulk.

Unlike older linear regulators, this module uses high-frequency switching to achieve excellent conversion efficiency while generating minimal heat, making it a smart replacement for bulkier buck modules in space-constrained builds. Built-in protection features including soft start, thermal shutdown, and under-voltage lockout help safeguard your circuit against common power faults. It’s a popular choice for powering microcontrollers, sensors, RC vehicles, quadcopters, CCTV systems, and battery-powered DIY projects where reliable, adjustable voltage regulation is essential.

Simply connect your input source, use a multimeter to monitor the output while adjusting the onboard potentiometer, and dial in the exact voltage your project needs. For continuous heavy loads, keeping current below 1.5A with adequate airflow is recommended for long-term stability.

Specification:

• IC Chip : MP1584EN
• Input Voltage : 4.5V to 28V
• Output Voltage : 0.8V to 20V (Adjustable)
• Max Output Current : 3A (1.5A recommended continuous)
• Conversion Efficiency : Up to 96%
• Switching Frequency : 1MHz typical, 1.5MHz max
• Output Ripple : Less than 30mV
• Dimensions : 22mm x 17mm x 4mm