LM2596 DC-DC Buck Converter Step-down Power Module

The LM2596S is a popular step-down (buck) voltage regulator integrated circuit (IC) manufactured by Texas Instruments and other semiconductor companies.
Specification:
Oput Voltage: 4.5 - 40V
Output Voltage: 1.5 - 35V (adjustable)
Output Current: Rated current 2A, maximum 3A (Additional heat sink is required)
Conversion Efficiency: Up to 92%
Potentiometer Adjustment Direction: Clockwise (increase), Anti-clockwise (decrease)