Features: [High Efficiency]: The MP1584EN with conversion efficiency of up to 96%, which enables more efficient use of the input power and reduces energy loss compared to the LM2596. [Output Current Capability]: The module is able to provide output current of 3A, which is suitable for a wide ranging of application requirements, especially for devices requiring higher power. Wide Input Voltages Ranging]: Supporting a wide ranging of input voltages (typically 4.5V to 28V), the module is compatibles a variety of power supply configurations to meet the needs of different devices. Adjustable Output Voltages]: The output voltages can be adjusted by external potentiometer (usually between 0.8V and 20V), flexibly adapting to the requirements of different loads. Overcurrent Protections]: Built-in overcurrent protections function effectively prevents the circuit from being damaged due to overloads, improving system safety and reliability. Specifications: Size: about 22mmx17mmx4mm/0.87x0.67x0.16in (Length x Width x Height) Input voltages: 4.5V~28V Output voltages: 0.8V~20V Output current: 3A (large limit) Conversion efficiency: 92% (high limit) Switching frequency: 1.5MHz (height limit), typical 1MHz Working temperature: -45℃~+85℃ Optional Voltages: 5V/12V/ Adjustment Package Includes: 5pcs 3A power module note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.