MP1584EN Ultra-Small DC-DC Buck Converter – 3A Adjustable Step-Down Module 4.5V-28V to 0.8V-20V

Overview

The MP1584EN Mini Buck Converter is one of the smallest adjustable step-down modules on the market. Don’t let its size fool you—it can handle an input voltage of up to 28V and deliver a peak output current of 3A. Because it operates at a high switching frequency (1.5MHz), it is incredibly efficient and produces very little heat for its size. It’s the go-to choice for makers who need to power 5V or 3.3V microcontrollers from 12V or 24V batteries in space-constrained enclosures.

Key Features

• Ultra-Compact Design: Smaller than a standard postage stamp, making it ideal for micro-robotics and drones.

• High Efficiency: Up to 96% conversion efficiency, meaning less wasted battery life and less heat.

• Wide Input Range: Handles anything from 4.5V up to 28V, covering almost all standard battery voltages.

• Adjustable Output: Precision potentiometer allows you to set the output as low as 0.8V.

• Fixed Frequency: 1.5MHz switching frequency allows for a cleaner output signal with smaller components.

Technical Specifications

MP1584EN vs. LM2596: Which one?

• Size: The MP1584EN is roughly 1/4th the size of the LM2596.

• Frequency: MP1584EN (1.5MHz) vs LM2596 (150kHz). The higher frequency of the MP1584EN means it’s more efficient and uses smaller inductors.

• Weight: If you’re building something that flies, every gram counts—choose the MP1584EN.