LM2596 Buck converter overview/review 4-40v in/1.5-35v out (Step Down voltage Converter) regulator

The LM2596 Buck Converter is a versatile step-down voltage regulator, converting input voltages from 4V to 40V down to output voltages from 1.5V to 35V efficiently. It features high efficiency, adjustable output, and is widely used in electronics projects. DC-DC converter, adjustable power supply, electronics tutorial, voltage conversion project.

Instructions:
Power Supply Connection:
Connect a DC power supply with voltage between 4.2V and 40V to VIN+ and VIN- terminals on the LM2596 module.

Module Activation:
Press the black pushbutton until the OUT LED above the button lights up, indicating the module is ready for operation.

Adjust Output Voltage:
Use a small slot screwdriver to adjust the bronze trimming screw to set the desired output voltage. Ensure the output voltage is at least 1V less than the input voltage. Check the input voltage by pressing the pushbutton until the IN LED lights up.

Connecting Devices:
Disconnect or turn off the power supply. Connect your device that requires lower voltage to the VOUT+ and VOUT- terminals on the module. Ensure the voltage trimming screw remains in the adjusted position.

Verification and Operation:
Reconnect or turn on the power supply. Press the black button on the module until the OUT LED lights up to verify the output voltage. Turn on your device to ensure proper operation.
Power Considerations:

Ensure your device does not exceed the maximum output power of 20W (calculated as voltage × current). Provide extra ventilation or use a fan if your device draws the full 20W to prevent overheating.
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Specifications:
Input Voltage: DC 4.2V to 40V
Output Voltage: 1.25V to 37V DC
Maximum Output Current: 3A with additional ventilation
Normal Output Current: 2A
Maximum Output Power: 20W
Oscillator Frequency: 150 kHz
Operating Temperature: -40°F to 140°F (-40°C to 60°C)
Dimensions: 2.61" W x 1.42" L x 0.5" H (66.3mm x 36mm x 12.7mm)