The Mini MP1584 DC-DC 3A Adjustable Buck Module is a compact step-down (buck) voltage regulator designed to efficiently convert higher DC voltage to a stable lower DC output. Based on the MP1584 chip, this module offers high efficiency and adjustable output voltage, making it ideal for powering microcontrollers, sensors, RF modules, LED strips, and battery-powered projects. Its small size makes it perfect for embedded systems where space is limited.
Core Module Specifications
• Module Type: DC-DC step-down (buck) converter
• Controller IC: MP1584
• Conversion Type: Step-down voltage regulator
• Output Voltage: Adjustable via onboard trimpot
Electrical & Interface
• Input Voltage Range: 4.5 V – 28 V DC
• Output Voltage Range: 0.8 V – 20 V DC (adjustable)
• Max Output Current: Up to 3 A (with proper cooling)
• Efficiency: Up to ~96% (load dependent)
• Switching Frequency: ~1.5 MHz (typical)
• Connection Type: Solder pads / pin holes (IN+, IN−, OUT+, OUT−)
Performance Characteristics
• High efficiency with low heat generation
• Stable output for sensitive electronics
• Adjustable output voltage for multiple use cases
• Small footprint with reliable power delivery
Physical Characteristics
• Module Type: Mini buck converter board
• Compact and lightweight design
• Onboard adjustment potentiometer
• Suitable for tight enclosures and compact builds
Compatibility
• Arduino Uno / Nano / Mega
• ESP8266 / ESP32
• Raspberry Pi power rails
• Sensors, GSM modules, RF modules
• Battery and solar-powered systems
Key Advantages
• Compact size with high current capability
• Wide input voltage support
• Adjustable output for flexible power needs
• Efficient power conversion for battery life improvement
Technical Insights
• Output voltage must be set before connecting load
• Current above 2 A may need airflow/cooling
• Keep input wires short to reduce noise
• Add capacitor on input/output for better stability if required
Applications
• Power supply for microcontrollers and sensors
• Voltage regulation for IoT devices
• Battery-powered electronics
• LED and motor driver power
• DIY power distribution systems
Pro Tip
• Measure output voltage using a multimeter before use
• Use thicker wires for high current loads
• Avoid short circuits, module has limited protection
• Mount module away from heat-sensitive components
Package Includes
• 1 × Mini MP1584 DC-DC 3A Adjustable Buck Module