From Most Electronic's description
XL4016 DC-DC Buck Converter 8A Step Down 4-36V to 1.25-36V with Display is a high-quality electronic component designed for Arduino, prototyping, and educational electronics. XL4016 DC-DC Buck Converter 8A with Display – Adjustable 4-36V to 1.25-36V This PWM buck (step-down) DC/DC converter module provides 1.25V to 36V continuously adjustable output voltage at up to 8A peak / 5A continuous current with high efficiency, low ripple and excellent line and load regulation. An onboard multi-turn potentiometer is used to adjust the output voltage level. It features a 3-character digital display which displays the output voltage. An onboard trim potentiometer can be used to calibrate the display if needed. This module is ideal for regulating 12V, 18V or 24V battery voltage down to the 12V, 9V, 5V or 3.3V levels required by many electronic circuits. For example, it could step a 12V car battery down to 5V for USB-powered devices such as cell phones or Arduino microcontrollers. Features: Adjustment method: first correct input power (between 4-40V) then multimeter to monitor the output voltage and adjust potentiometer (usually clockwise turn boost, buck turn counterclockwise), Input: IN+ input positive IN- input negative Output: OUT+ output positive OUT- output negative Static power consumption is only about 6mA. Connection: Welding, plus pin can be directly soldered after the PCB. Short circuit protection: current limiting, thermal protection, self-recovery. Non-isolated step-down (BUCK)switching regulator. Short circuit protection: Current limiting, self-recovery Potentiometer adjustment direction is as Clockwise (increase) and Anti-clockwise (decrease) Non-synchronous rectification Specifications: Input voltage range: 4V to 36VDC Output voltage range: 1.25V to 36VDC adjustable with onboard potentiometer Output current: 0A to 5A continuous, 8A peak Maximum output power: 200W Efficiency: Up to 95% Built in thermal shutdown function Built in current limit function Built in output short protection function Dimensions (approximate): 64mm x 47mm x 26mm (L x W x H) Weight: 45g Applications: Power Supply for Electronics: Provides stable and adjustable power for various electronic components and modules. Battery-Powered Projects: Efficiently steps down battery voltages to required levels, extending battery life. LED Drivers: Supplies appropriate voltages and currents for powering LED arrays. Communication Equipment: Ensures reliable power delivery for radios, transceivers, and other communication devices. Automotive Electronics: Converts vehicle battery voltages to suitable levels for automotive electronic systems. This is a buck (step-down) converter, therefore the input voltage must be at least ~2V greater than the output voltage. It’s perfect for DIY makers, students, and anyone building custom electronic circuits or STEM kits.
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