LM2596 power module (step down) Input 5V~40V Output 3.5~33V. Ideal for solar panel regulator

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This is a Step-down dc to dc inverter with high efficiency LM2596 switching IC. It steps down voltage sources like a 32V solar panel to 5~40V (output adjustable).


  • Input: 5V~40V DC
  • Type: Common ground and switching
  • Output: 3.5~33V DC, adjustable
  • Power: 15 Watt max
  • Efficiency: 86%
  • Current: 1.2A (1.5A peak with heatsink)
  • Size: 36.5mm *24.5mm * 11.5mm

Note: output is always lower than the input by at least 1.0V
Example: Input 38V, output is 5V~36V adjustable
Not recommended for input lower than 4V or higher than 40V