LM2596S DC-DC Buck Converter DIY 4-40V to 1.25-37V Step-Down Regulator Power Module Volt Stabilizer with LED Voltmeter Display 2PCS

LM2596 Buck Converter DC Voltage Regulator Adjustable 4-40V to 1.5-37V DC-DC Step Down Buck Power Converter Supply Module with LED Display, Pack of 2

How to Use the LM2596 Buck Step-down Power Converter Module:
1, Connect Input Voltage:
Connect a DC voltage source (4.0V to 40V) to the input terminals. Ensure the input voltage is at least 1V higher than the output voltage you wish to set. For example, if you want to set the output to 5V, the input voltage should be at least 6V.

2, Set Output Voltage:
Use the potentiometer (adjustable knob) on the module to set the desired output voltage between 1.25V and 37V. Turn the knob slowly to fine-tune the voltage.
Note: To ensure accuracy, the input voltage should be at least 4.0V above the desired output voltage.

3, Check Output Voltage with Voltmeter:
The built-in digital voltmeter will display the current output voltage. If the voltmeter is not visible, tap the right button to switch between input and output voltage displays.

4, Turn Off Voltmeter When Not Needed:
To save power, the voltmeter can be turned off by pressing the left button. Tap the button again to turn it back on.

5, Monitor Current Draw:
The module can supply a maximum current of 3A. For continuous operation, it is recommended to use the module with an operating current of 2A or less. For currents above 2A, consider adding a heatsink for better thermal management.

6, Overheat and Short Circuit Protection:
The module has built-in overheat and short circuit protection. If the temperature exceeds safe limits or a short circuit is detected, the module will automatically shut down to prevent damage.

7, Use Terminals for Easy Connection:
The module features screw terminals for easy wire connection. No soldering is required, making it convenient to use in DIY projects or quick setups.

8, Save Settings:
The settings are saved even when the module is powered off. This ensures the output voltage remains the same when you turn the power back on, offering convenience for repeated use.