DC-DC Step Down 3A w/ LCD Display, Adjustable Voltage Regulator Module Buck Converter

  • RM45.00

  • Product Code: STOPDOWN-3A-w-LCD-DISPLAY
  • Availability: In Stock

The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat and do not yield any current step up. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.



  • Module Properties: non-isolated step-down (BUCK) switching regulator
  • Input voltage: DC 5 – 22V
  • Output Voltage: Adjustable 0 - 16.5V DC (Input must 1V greater than output)
  • Output Current: Rated 2A, max. 3A
  • Measurement Accuracy: ±0.1V (To ensure the accuracy, keep the input above 4.5V and below 20V)
  • Conversion efficiency: Up to 95% (Output voltage higher, the higher the efficiency)
  • Minimum dropdown voltage:1.5V
  • Voltage regulation: 0.8%
  • Input reverse polarity protection: Yes
  • Display module: STN LCD
    • LCD size: 37.5mm x 17.0mm(LxW)
    • LCD accuracy: 1%
  • Operating temperature: Industrial grade (-40 to +85°C)
  • Size: 62 x 44 x 18mm



  • Power off
  • Press and holding left button then power on
  • The display will begin to flashing, release left button
  • By pressing the left or right button to adjust the output voltage, while monitoring by a multimeter
  • After adjustment, power off and power on again
  • Calibration is completed
  • Please note that output may plus or minus around 0.04V


Package Content

  • 1 x DC-DC Step Down 3A w/ LCD Display
  • 1 x Case  Free 


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Tags: Step-Down