DC-DC Buck Converter with 7 Segment Display LM2596

This particular DC-DC Buck Converter with 7 Segment Display LM2596 shows the current input and output voltages. The LM2596 step-down switching regulator is capable of current up to 3A, with an adjustable output voltage of 1.25-30V via the trim pot.

Overview:

With voltage meter display, voltage meter error of±0.1V, the range of 0~40V. (note: to ensure that the voltage meter accuracy, please make sure that the input voltage is 4.2V or more).
Low light touch button switch measurement input or output voltage, and a light show is voltage measurement which road, and keep the last set, even if the power switch on again.
Voltmeter fine-tuning: hold down the button about 1-2s into fine-tuning mode, can remove button on the calibration at this time. (please do not use standby function, usually).
Low voltage meter can be closed, long press button closure voltmeter (minimum power loss).
Input voltage:4.2~40v(input voltage must be higher than to the output voltage of more than 1v).
Output voltage adjustable range1.25V~37V adjustable (input voltage must be higher than to the output voltage is more than 1V).
Maximum output current can be as high as 3A, normal and stable-working current in 2A.
Low the internal oscillation frequency, 150KHZ belong to the second generation of switch voltage regulator, low consumption, high efficiency.

Specification:

Input Voltage: 4-35V
Adjustable Output Voltage: 1.25-30V
7 segment display
Output Current: 3A
PCB Size: 68x35mm

Features:

Input reverse polarity protection
Built-in output short protection function
The built-in thermal shutdown function
Press the right key to let the display show the input or output voltage. when the right “OUT” led light, it shows output, the left “IN” led show input.
Power off memory function, show that road after power voltage values measured for the last time
Press the touch button for 3 seconds to turn off LED display, touch the button again to turn on the LED display
The band terminals, no iron can also be easy to use, and retention wire connection point