10Pcs LM2596 DC 4.0-40-1.3-37V DC-DC Step Down Converter Module Adjust Voltage Regulator LM2596S-ADJ LM2596S Step-Down Board

Parameters:Input Voltage: DC 3 -40 VOutput Voltage: DC 1.5 - 35 VOutput Current: 3A(MAX) It is recommended to use under 2A (NOTE: When using high power, add a heat sink to the power supply chip)Load adjust ratio: +/-0.5%Voltage adjust ratio: +/-2.5%Transferring efficiency: 92% Max(the higher output voltage, the higher efficiency)ON/OFF frequency: 150KHzOutput ripple: 200mVModule feature: buck and non-isolatedRectification method: non-synchronous rectificationFuction:1.Built in over-temperature protection function2.Built in current limit function3.Built in output short-circuit protection functionHow to use1.Access the power supply ( 3 -40 V), the power indicator light, the module is working properly.2.Adjust the blue potentiometer knob (usually clockwise rotation boost, counterclockwise rotation Step-down) and monitor the output voltage with a multimeter to reach the required voltage.3.A customer reflects the module output voltage can not be adjusted, always equal to the input voltage. When you encounter this problem, please first counterclockwise rotation potentiometer 10 laps above, and then use the module can be normal adjustment of the voltage.