DC-DC MP1584EN 3A Step Down Power Supply Module

DC-DC MP1584EN 3A Step Down Power Supply Module is an ultra-compact and highly efficient voltage regulator designed to convert a higher DC input voltage into a stable, lower DC output voltage. Engineers and makers choose this buck converter for its small form factor and robust performance, making it an excellent choice for powering microcontrollers, sensors, and other electronics from a higher-voltage source like a battery pack or power adapter. The module’s high switching frequency and integrated protection features ensure reliable and safe operation in a variety of projects.

Key Features:

• High Efficiency: Delivers an efficiency of up to 96%, minimizing heat loss and extending battery life.
• Adjustable Output: A built-in multi-turn potentiometer allows you to precisely adjust the output voltage.
• Compact Size: Its remarkably small footprint makes it easy to integrate into projects with limited space.
• High Current Output: Provides a continuous output current of up to 1.5A, with a peak current of 3A.
• Integrated Protection: Includes short-circuit and thermal shutdown protection to prevent damage to the module and connected components.
• Wide Input Voltage Range: Accepts a broad range of input voltages, making it versatile for many applications.

Technical Specifications:

• Input Voltage: 4 V to 28 V DC
• Output Voltage: 0.8 V to 20 V DC (adjustable)
• Output Current: 1.5 A continuous (3 A peak)
• Switching Frequency: 1.5 MHz (typical)
• Efficiency: Up to 96%
• Operating Temperature: -40 °C to +85 °C

Mechanical Specifications:

• Module Type: Compact breakout PCB with soldered MP1584EN IC
• Connector: 4-pin solder pads for input and output
• Assembly: Designed for through-hole soldering or jumper wire connections
• Material: FR4 PCB

Dimensions:

• Board Length: ~22 mm
• Board Width: ~17 mm
• Board Thickness: ~4 mm

Pinout and Wiring:

• IN+: Positive power input
• IN-: Negative power input (Ground)
• OUT+: Positive power output
• OUT-: Negative power output (Ground)
• Wiring Note: Connect your higher-voltage source to IN+ and IN-. Before connecting your load, carefully use a multimeter to measure the output voltage at OUT+ and OUT- and adjust the onboard potentiometer to your desired voltage.

Datasheet Reference:

• Download the official Monolithic Power Systems (MPS) MP1584EN datasheet for detailed electrical specifications, thermal characteristics, and application notes.

Applications:

• DIY Electronics: Powering microcontrollers like Arduino and ESP32 from higher-voltage sources.
• Battery-Powered Projects: Efficiently converting voltage from lithium-ion or lead-acid batteries.
• Robotics: Regulating power for sensors, servos, and low-voltage components.
• Solar Power: Creating a stable voltage supply from solar panels for charging or direct use.

Equivalent Models:

• LM2596: A very common step-down converter, but generally larger and less efficient than the MP1584EN.
• AMS1117: A linear voltage regulator, which is less efficient and only suitable for low-current applications.

Package Includes:

• 1 x DC-DC MP1584EN 3A Step Down Power Supply Module