Highlights: XL4015 Step down Buck 5A high power, high efficiency and low ripple with power indicator
Module Properties: non-isolated buck module (BUCK)
Input voltage: 8-36V (input please try not to exceed 38V)
Output voltage: 1.25-32V continuously adjustable
Current: 0-5A
Power: 75W
Operating temperature: -40 to +85 degrees
Operating frequency: 180KHz
Conversion efficiency: up to 96%
Load regulation: S (I) ≤0.8% (input 24V, output 12V, load varies from 1 ~ 4.5A measured)
Voltage Regulation: S (u) ≤0.8% (output 12V, when 4A, when 18 ~ 32V voltage change from the measured)
Power Indicator: Yes
Short circuit protection: Yes (limit current 8A)
Overtemperature protection: (automatically shut off the output after overtemperature)
Input reverse polarity protection: No, (if necessary, please enter the string into the high current diode)
Installation: two 3mm screws
Connection: Welding, V-IN is the input, V-OUT is the output

About XL4015 Step down Buck

A buck converter or step-down converter is a DC-to-DC converter which steps down voltage (while stepping up current) from its input (supply) to its output (load). It is a class of switched-mode power supply. Switching converters (such as buck converters) provide much greater power efficiency as DC-to-DC converters than linear regulators, which are simpler circuits that lower voltages by dissipating power as heat, but do not step up output current. The efficiency of buck converters can be very high, often over 90%, making them useful for tasks such as converting a computer’s main supply voltage, which is usually 12 V, down to lower voltages needed by USB, DRAM and the CPU, which are usually 5, 3.3 or 1.8 V.

Buck converters typically contain at least two semiconductors (a diode and a transistor, although modern buck converters frequently replace the diode with a second transistor used for synchronous rectification) and at least one energy storage element (a capacitor, inductor, or the two in combination). To reduce voltage ripple, filters made of capacitors (sometimes in combination with inductors) are normally added to such a converter’s output (load-side filter) and input (supply-side filter).Its name derives from the inductor that “bucks” or opposes the supply voltage.en.wikipedia.org

convertors typically operate with a switching frequency range from 100 kHz to a few Mhz. A higher switching frequency allows for use of smaller inductors and capacitors, but also increases lost efficiency to more frequent transistor switching.