1-5PC LM2596 DC-DC Buck Converter Adjustable Power Supply Step Down Module Multi

Features:
– Brand New, High Quality
– DC-DC LM2596 Step-Down Power Module
– L x W x H=6.7 x 3.5 x1.2cm(approx.)
– Input voltage range:4-40VDC
– Output voltage range:1.25-37DC adjustable
– Output current:2A
– Input reverse polarity protection
– Built in output short protection function
– LED digital voltmeter tube,the accuracy is adjustable function,can be aimed at your multimeter adjustable accurate
– Press the right key to let the dispaly show the input or output voltage.when the right”
– OUT” led light,it shows output,the left “in” led show input

– How to adjust the accuracy
Input and output voltage measurement error calibration function
Press and hold the switch for more than 4 seconds and release it to enter the voltage measurement error calibration function. At this time, the IN light is on (calibration input) and the digital tube flashes to show the calibration value (factory parameter is 0.0), then short press the button to change this value (the value range is -0.5~0.5, the unit is V), a positive number indicates upward calibration, a negative number indicates downward calibration. After adjusting the calibration value of the input terminal, press and hold the button for more than 2 seconds, then release the button to enter the error calibration of the output terminal, at this time the OUT lamp lights up (calibration output terminal) and the calibration value of the output terminal is displayed, the adjustment method is the same as that of the input terminal, after adjusting the calibration value of the output terminal, press and hold the button for more than 2 seconds, then release the button to save the set value and return to the normal display voltage, the set calibration value takes effect immediately and The set calibration value will be effective immediately and will not be lost when power is lost.
– Note: Some customers report: “The module can not be adjusted, the output voltage is always equal to the input voltage.” When you encounter this problem, please counterclockwise rotation of the potentiometer 10 laps or more, then you can adjust the output voltage. Because the factory default output voltage is 20V.

Package
– 1-5PCS DC-DC LM2596 Step-Down Power Module

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