Mini Size, Max Performance! MP1584EN 3A Buck Converter – The Compact, High-Efficiency Upgrade over LM2596.
Key Features & Benefits
Coin-Sized, 3A Powerful: Tiny 22x17mm footprint yet delivers a full 3A continuous output, ideal for space-constrained projects like drones and portable gadgets.
Up to 92% High Efficiency: Utilizes 1.5MHz high-frequency switching for higher efficiency, less heat, and faster response compared to older, bulkier modules like LM2596.
Wide Voltage Flexibility: Accepts 4.5-28V input and provides adjustable output from 0.8V to 20V. One module replaces multiple fixed-voltage regulators.
Easy Screw Terminals & Adjustment: Features screw terminals for easy wiring and a precision potentiometer for simple voltage setting with a multimeter.
Perfect for Breadboard Prototyping: Its micro size fits neatly into a breadboard’s power rails, providing a clean, adjustable lab power supply for your Arduino, STM32, sensor projects.
Product Description
Still using bulky, inefficient old buck converters? The MP1584EN represents the modern evolution of DC-DC step-down technology. It packs wide input range, high current output, and excellent efficiency into a coin-sized package, making it the perfect power solution for upgrading your workbench, optimizing product designs, or completing school electronic DIY projects.
🚨 CRITICAL Warnings & How to Use (MUST READ – Proactively Prevent Negative Reviews)
【FATAL WARNING】NO PROTECTION!
NO Reverse Polarity Protection! Connecting input power backwards will instantly and permanently destroy the module. Double-check polarity before connection.
NO Load/ Light Load Operation! The output MUST be connected to a load (recommended >10% of rated power). Operating without a load or with too light a load can cause output voltage to spike, potentially damaging your expensive connected device.
【Correct Usage Steps】
Connect Input: Apply 4.5-28V power correctly to the INPUT terminals (RED +, BLACK -).
Connect Multimeter: Attach multimeter probes to the OUTPUT terminals, set to voltage mode.
Adjust Voltage: With a load already connected to the output, slowly turn the potentiometer with a small screwdriver while watching the multimeter until the desired voltage is reached.
Connect Your Device: Once the voltage is stable, connect your device to the output terminals.
【Heat Dissipation】 The module will get hot during continuous operation near 3A or with a high input-output difference. Ensure adequate ventilation or attach a small heatsink.
Specifications
IC: MP1584EN
Input Voltage: 4.5V – 28V DC
Output Voltage: 0.8V – 20V DC (Adjustable)
Max Output Current: 3A (Continuous)
Conversion Efficiency: Up to 92%
Switching Frequency: 1.5 MHz (Max)
Module Size: 22mm x 17mm x 4mm
Connection: Screw Terminals
Package Includes
1 × MP1584EN 3A DC-DC Buck Converter Module
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