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The MP1584EN 3A DC-DC Step-Down Buck Converter Module is an ultra-small, high-frequency voltage regulator designed to convert higher DC input voltages into lower, stable DC output voltages. Built around the advanced MPS MP1584EN switching regulator IC, this miniature board operates at a high switching frequency of 1.5 MHz, allowing it to deliver up to 3A peak output current while maintaining a remarkably small footprint.

With an input voltage range of 4.5V to 28V and a precisely adjustable output from 0.8V to 20V, this module is widely used to step down 24V industrial rails, 12V automotive power, or LiPo battery packs down to logic-level voltages (like 12V, 9V, 5V, or 3.3V). Its high conversion efficiency of up to 96% ensures minimal heat generation, making it a superior, space-saving alternative to older LM2596 modules.

Key Features and Benefits

• Ultra-Compact Size: Measuring just 22mm x 17mm, it fits easily into space-constrained projects and custom enclosures.

• High Efficiency: Achieves up to 96% power conversion efficiency, reducing thermal loss in battery-operated builds.

• Wide Voltage Range: Accepts input voltages from 4.5V to 28V DC and provides adjustable output from 0.8V to 20V DC.

• High Switching Frequency: Operates at 1.5 MHz for ultra-low output ripple (<30mV) and quick dynamic response.

• Built-in Circuit Protection: Features integrated thermal shutdown, soft-start, and under-voltage lockout (UVLO) protection.

• Multi-Turn Trimmer: Precise onboard potentiometer allows fine-tuning to exact target voltages.

Technical Specifications

How to Use

1. Connect Power Source: Solder or connect your primary DC power source (4.5V to 28V) to the IN+ (Positive) and IN- (Ground) pads.

2. Adjust Output Voltage: Before connecting your load/device, apply input power and use a digital multimeter across OUT+ and OUT-. Turn the onboard trimmer potentiometer until your desired output voltage (e.g., 5V or 12V) is displayed.

3. Connect Load: Power off the module, then connect your load/device terminals to OUT+ and OUT-.

4. Usage Precaution: Ensure input voltage is always at least 1.5V higher than the desired output voltage to maintain proper regulation.

Applications

• Stepping down 24V / 12V power supply rails to 5V or 3.3V for Arduino, ESP32, & Raspberry Pi

• Universal Battery Elimination Circuit (UBEC) for RC planes, cars, and drones

• Automotive Power Regulation for dashcams, GPS, and sensors

• DIY Power Supplies & Portable Battery Packs

• Industrial Automation & Robotics Control Circuits

Package Includes

• 1 x MP1584EN 3A DC-DC Step-Down Buck Converter Module

Shipping & Delivery

• Free shipping on orders above ₹999 across India

• Dispatched within 1-3 business days

• Expected delivery: 3-7 business days depending on location

• Secure packaging to ensure safe transit of electronic components