LM2596S Buck Converter Step-Down Volt Regulator 36V 24V 12V to 5V 2A

LM2596S Buck Converter DC DC Step-Down Voltage Regulator 36V 24V 12V to 5V 2A Volt Digital Display 2596S Product parameters: input voltage is 4.0V - 40V, output voltage is 1.25V - 37V, output current is 2A (normal and stable) and 3A max, Simple to operate: Output current: the maximum output current can be as high as 3A, the recommended working current is about 2A, more than 2A plus heat sink please turn the potentiometer counterclockwise for more than 10 turns, and then use the module to adjust the voltage normally; This is because when the module leaves the factory, the default output voltage is about 20V Fuction: Built in over-temperature protection function Built in current limit function Built in output short-circuit protection function How to use 1.Press the button in a short time( 1 second) so that “in” LED lighted, the voltmeter shows the value of input voltage 2.Press the button in a short time( 1 second) again so that “out” LED lighted, the voltmeter shows the value of output voltage 3.Rotate the top screw of potentiometer clockwise to boost the value of the output voltage, anti clockwise to reduce it. 4.long press the button between 1 and 4 seconds to turn off the voltmeter. How to adjust accuracy of input/output voltage 1.long press the button for more than 4 seconds, then release, voltmeter and “in” LED flash in synchronization entering into the input voltage calibration mode. 2.Press the button in a short time( 1 second) to adjust the value(range from -0.5~0.5v, positive means to rises units, negative means to minus units)( Due to a unit is less than 0.1V, so you have to continuously press 1 to 5 times to see the voltmeter change 0.1V) 3.long press the button for more than 2 seconds and then release to enter the output voltage calibration mode. 4.After calibration, long press the button for more than 2 seconds all parameters will be saved automatically and back to the voltage display.