Application areas: DIY mobile power supply, monitoring power supply, children's car power supply, camera power supply, vehicle power supply, communication equipment. Suitable for applications with strict requirements on size and weight, such as aircraft models. Model/Name: Ultra-Small DC-DC Buck Module Voltage can be adjusted by connecting a multimeter to the output and using a screwdriver to adjust the potentiometer, allowing fine tuning for precise voltage output. These boards feature adjustable current limiting with a fixed 3A current limit. Ensure the module is within its operating range before use. Avoid output short circuits to prevent damage. When setting parameters, ensure the output voltage is stable before connecting the load. Input voltage: 4.5V–28V Output voltage: 0.8V–20V Output current: 3A (maximum) Conversion efficiency: 92% (typical) Output ripple: Less than 30mV Switching frequency: 1.5MHz (typical 1MHz) Operating temperature: -45°C to +85°C Dimensions: 22mm x 17mm x 4mm (L x W x H) Warning: Do not reverse the positive and negative terminals to prevent damage. Avoid operating under light load (less than 10% of rated output) or no-load conditions. Material: PC + Metal Color: Green + Black Package Contents: 12 x Mini MP1584EN DC to DC Buck Converter Note: The package includes only the items listed above. Other accessories are not included. Lighting and display settings may cause slight color variations between the image and the actual product. Measurement error allowed: ±1–3 cm.