LM2596S DC-DC 3.6-46V 3A Adjustable Step Down Power Supply Module with 5V Reverse Connection Protection Voltage Regulator LM2596S Upgrade Increase input with reverse connection protection, plus or minus reverse will not burn the module, strengthen the quality of inductance, increase the service life of the product! Specifications:Module Property: No IsolationRectification Mode: Non-Synchronous Rectifier Input Voltage: 3.6V-46V Output Voltage: 1.25V-35V Output Source: Rated Current is 3A,Conversion Efficiency: 92% (Highest)Switching Frequency: 65KHz Output Ripple: 30mV (Maximum)Load Regulation: ± 0.5%Voltage Regulation: ± 2.5%Working Temperature:-Minus 40 Degree-85 DegreeDimension: 43mm*21mm*14mm(L*W*G) Using Tutorial:1. Connected to the power supply (3-40v), the power indicator is on, the module is working properly.2. Adjust the blue potentiometer knob (generally booster clockwise, counterclockwise) using m