Check the listing for details. 5 PCS MP1584EN Ultra-Compact DC-DC Step-Down Power Supply Module 3A Output. Color: Green, Condition: New. Listed at 9.99 USD. Product Description: Introducing our 5-Pack of MP1584EN Ultra-Compact DC-DC Step-Down Power Supply Modules, the perfect solution for a wide array of power supply needs. These versatile modules are designed to be incredibly efficient and compact, making them ideal for applications where space and power efficiency are critical. Whether you're building a DIY mobile power unit, setting up a power supply for monitoring systems, or need reliable power for aviation models, these modules offer the flexibility and performance you require. Key Features: Ultra-Compact Design: At just 22mm x 17mm x 4mm, these modules can fit into the tightest of spaces, providing powerful performance without taking up much room. Wide Input Voltage Range: Accepts anywhere from 4.5V to 28V, giving you the versatility to use these modules in a variety of projects. Adjustable Output Voltage: Easily set the output from 0.8V to 20V to meet your specific power requirements. High Current Output: Supports a rated current of up to 3A (MAX), suitable for powering a diverse range of devices. Exceptional Efficiency: Achieves up to 96% efficiency, ensuring that your projects run smoothly and effectively with minimal energy loss. Low Output Ripple: Keeps output ripple below 30mV for smooth and stable power supply. High Switching Frequency: Operates with a switching frequency up to 1.5MHz (highest), typically around 1MHz, for fast and efficient power conversion. Broad Operating Temperature Range: Designed to work reliably in extreme conditions, from -45°C to +85°C. Specifications: Model Name: MP1584EN DC-DC Step-Down Module Input Voltage: 4.5-28V Output Voltage: Adjustable 0.8-20V Output Current: 3A (Max) Switching Frequency: Up to 1.5MHz Efficiency: Up to 96% Size: 22mm x 17mm x 4mm Operating Temperature: -45°C to +85°C Quantity: 5 pieces per pack Ideal for a wide range of applications, from DIY projects to professional equipment supply, these ultra-small DC-DC step-down power supply modules provide a reliable, high-efficiency solution for your power conversion needs. With an adjustable output and high current capability, they're ready to tackle even the most demanding projects.