XL4015 5A DC-DC Step Down Adjustable Power Supply Buck Module LED with Voltmeter




5A 4V-38V XL4015 DC-DC Adjustable Step down Module Voltmeter




  • The DC-DC Adjustable Step Down Converter Module has large power, highefficiency, low-ripple. With power indicator, on-board voltmeter. The voltmetercan calibrate automatically. The measure can be changed between input andoutput voltage, with indicator. The voltmeter can also be shutdown. The boarduses connection terminal for easy wiring.
  • Built in thermal shutdown function
  • Built in current limit function
  • Built in output short protection function




  • Better than 2596, easy to 4A 50W, up to 75W adding heat sink
  • Input voltage: 4V ~ 38V (not more than 38V)
  • Output voltage: 1.25V ~ 36V (adjustable)
  • Output current: 0A ~ 5A (recommended below 4.5A)
  • Output power: recommended use below 75W (add heat sink when more than50W)
  • Operating temperature: -40°C ~ +85°C
  • Operating frequency: 180 KHz
  • Conversion efficiency: Up to 96% (based on input and output voltage,current, pressure)
  • Voltmeter range: 0V ~ 40V
  • Voltmeter error: ±0.1V (NOTE: To ensure the accuracy, keep the inputabove 4.5V)
  • Load regulation: S (I) =0.8%
  • Voltage regulation rate: S (u) =0.8%
  • Power indicator: Yes
  • Short circuit protection: Yes (limit current 8A)
  • Over temperature protection: Yes (shutdown output automatically afterover temperature)
  • Input Reverse Polarity Protection: None (cascade high current diode ifrequired)
  • Wiring: IN+/- Input, OUT+/- Output
  • Size: 66 x 39 x 18mm


Voltmeter calibration method:


  1. Onboard voltmeter shows that the output voltage, long press theright button 2 seconds to loosen, voltmeter, and the output voltage indicatorlight [OUT] synchronous flash, at this time into the output voltage regulationmode; Similarly, when the input voltage IN the voltmeter display, long pressthe right button 2 seconds to loosen, voltmeter, and the input voltageindicator light [IN] synchronous flash, at this time into the input voltageadjustment mode.


  1. Light touch button on the right side, the voltage value is addingup a unit; Press the left button, minus a unit; Due to a unit of voltage isless than 0.1 V, so you need to press the 1-5 consecutive can see the voltmeterchange 0.1 V, the concrete continuous button several times depends on thecurrent display voltage, current shows that the higher the voltage, the fewerthe number of press.


  1. After the voltage adjustment, long press the right button for 2seconds, release, to exit the output voltage calibration mode, all theparameters set to automatically power down saving.


The DC/DC buck module applications the input voltage is higher thanthe output voltage of the buck field, such as battery, power transformer, DIYadjustable regulated power supply, LCD Monitor and LCD TV, portable instrumentpower supply, telecom/networking equipment, 24V vehicle notebook power supply,industrial equipment buck. 12V buck to 3.3V, 12V buck to 5V, 24V buck to 5V,24V buck to 12V, 36V buck to 24V etc.




The input voltage should be more 1.5V than output!


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