DC-DC 3A Adjustable Step-Down Buck Voltage Regulator with Display - Input 4-40V / Output 1.25-37V

Here we have an adjustable DC-DC Step-Down Power Supply Unit (PSU) with the very useful addition of an integrated digital voltage meter and LED display.

The voltage meter is capable of sensing both input and output supply voltages and can be quickly switched between the two by pressing a voltage selection button on the module. Together with its high precision multi-turn potentiometer this means any desired output voltage within its supply range can be set without the need for an external voltage meter. The PSU utilises the efficient LM2596 step-down switching regulator (buck converter). It boasts a very high operating range with a DC input supply range of 4 - 40V and an adjustable output range of 1.25 - 37V. It capable of driving a 3 A load.

Connection to the module is provided with the option of both input and output screw terminals or large solderable pads if a more permanent connection is required.

Usage:

• Press the button to switch measuring input or output voltage, an LED shows which is being measured.
• Adjust the potentiometer to set desired output voltage
• Press the button for 3 seconds to turn off LED display, touch the button again to turn on the LED display