LM2596S DC-DC Step-down Module Max 3A Adjustable Voltage

Connect to a power supply (3-40V), adjust the blue potentiometer knob (generally clockwise for increased voltage, counter-clockwise for decreased voltage), and use a multimeter to monitor the output voltage until the required voltage is reached.
Input Voltage: 3.2V~46V (Recommended for use within 40V)
Output Voltage: 1.25V~35V
Output Current: 3A (Maximum)
Conversion Efficiency: 92% (Maximum)
Output Ripple: <30mV
Switching Frequency: 65KHz
Operating Temperature: -45℃~+85℃
Dimensions: 43mm * 21mm * 14mm (L*W*H)

X7R high-Q, high-frequency bypass capacitors are added to both the input and output terminals, ensuring superior electromagnetic compatibility!
Input voltage range: DC 3.2V to 46V. Recommended for use within 40V! (The input voltage must be at least 1.5V higher than the output voltage. Boosting is not supported.)
Output voltage range: DC 1.25V to 35V. Continuously adjustable voltage, high efficiency (maximum 92%), maximum output current 3A.
Measured load regulation is less than 1% with a 12V input and a 5V output current of 1A.
Note: This is a step-down module; the input voltage must be higher than the output voltage.
Outputs below 2A can operate for extended periods without a heatsink. For output currents greater than 2.5A (or output power greater than 10W), a heatsink is required for prolonged operation.