This amazing 20W adjustable DC-DC buck converter module comes with a digital display. It's built on the LM2596 3A step-down voltage regulator and can handle a 4 - 40V DC input with an accuracy of ± 0.05V. Unlike regular buck converters, it has an integrated display for output voltage readout on the board. You can easily change the output by adjusting a screw potentiometer on the board. Super simple! It's perfect for various DC applications like batteries, power transformers, DIY adjustable power supplies, 24V vehicle power supplies, and industrial equipment. It can convert 12V to 3.3V, 12V to 5V, 24V to 5V, 24V to 12V, 36V to 24V and more. The on - board voltage meter has a self - calibration mode. Just hold the button for 3 seconds to enter different calibration modes and click to adjust values. Once calibrated, the values are stored automatically. Features include self - calibration for high - precision output, easy button - touch voltage measurement switching with an indicator, an option to disable the display, wire terminals so no soldering is needed, a 4.0 - 40V input voltage (input must be 1.5V higher than output), a continuously adjustable output voltage from 1.25V to 37V, a maximum output current of 3A (recommended within 2.0A with heatsink for higher currents), 20W output power (heatsink recommended for over 15W), high conversion efficiency of about 88%, and reverse polarity, overheating, and short - circuit protection. Specification details are an input voltage of 4.0 - 40V, output voltage of 1.25V - 37V, output power of 20W, output current of 3A, dimensions of 6.1 x 3.4 x 1.2cm/ 2.4 x 1.34 x 0.47 inches, and a weight of 22g. The package includes one 20W Digital Display Adjustable DC - DC Buck Converter.
Using this 20W Digital Display Adjustable DC - DC Step - Down Converter is easy. First, connect your power source with an input voltage between 4.0 and 40V. Remember, the input voltage must be at least 1.5V higher than the output voltage you want. To adjust the output voltage, simply turn the screw potentiometer on the board. The digital display shows you the output voltage. If you need to calibrate the voltage meter, hold the button for 3 seconds to enter different calibration modes: input voltage calibration mode (“IN” is ON), output voltage calibration mode (“OUT” is ON), and hold again for 3 seconds to exit and save the parameters. In calibration mode, click the button to adjust the values. When using it, it's recommended to keep the output current within 2.0A. If you need higher currents, use a heatsink to prevent overheating. For output power over 15W, also use a heatsink. The unit has reverse polarity, overheating, and short - circuit protection, but still handle it carefully. You can turn off the display by holding the button for 2 seconds if you don't need it. To maintain it, keep it in a dry and clean place. Check the wire terminals regularly to make sure they are well - connected. That's all you need to know to get the most out of this converter!
