It is Buck Converter Adjustable Voltage Regulator/Driver Module, Input voltage: DC 4.5~40V, Output voltage: DC 1.25~37V(consistently adjustable and recommend you adjust when in empty load), Output current: 2A rated current and 3A Max(please add heatsink ), small size, high efficiency, long term stable and reliable quality,easy installation and use, Suitable for electronic equipment,industrial equipment,LED drive,Advertising screen,Monitoring System etc

Parameters:

• Input voltage: DC 4.5~40V
• Output voltage: DC 1.25~37V(consistently adjustable and recommend
  you adjust when in empty load)
• Output current: 2A rated current and 3A Max(please add heatsink )
• Load adjust ratio: +/-0.5%
• Voltage adjust ratio: +/-2.5%
• Transfering efficiency: 92% Max(the higher output voltage, the higher efficiency)
• ON/OFF frequency: 150KHz
• Output ripple: 200mV
• Power consumption when in static state: only about 3A
• Working temperature: -40 Celsius to 85 Celsius
• Module feature: buck and non-isolated
• Rectification method: non-synchronous rectification
• Adjust method: please use a mini screwdriver to adjust output voltage by adjusting the potentiometer

Note:

• 1. Please add heatsink when the output power is larger than 15W
• 2. Please make sure the voltage difference between input voltage and output voltage is at least 1.5V to ensure stable output
• 3. Please note there is no reversed connection protection, so check the polarity of input voltage before power on to avoid burning due to reversed connection.
• 4. It has over-temperature and short-circuit protection.

Package includes:

• 5 x LM2596 bare board (DC Buck Converter / Power Adapter)