LED
LCD
Product Overview
The LM2596 is a popular “Buck” converter that efficiently converts a high input voltage into a lower output voltage. Unlike traditional linear regulators (like the L7805), this switching regulator is highly efficient and generates much less heat. It is a must-have for any hobbyist’s toolkit for powering 5V projects from 12V batteries or 24V power supplies.
Arduino & Power Wiring
IN+: Input Positive (4.5V to 40V)
IN-: Input Negative (GND)
OUT+: Output Positive (1.23V to 37V)
OUT-: Output Negative (GND)
Adjustment: Turn the onboard Blue Potentiometer clockwise to decrease the output voltage.
(Note: Always use a multimeter to set the desired voltage before connecting it to your project)
Technical Specifications
| Feature | Specification |
| Input Voltage | 4.5V to 40V |
| Output Voltage | 1.23V to 37V (Adjustable) |
| Output Current | 2A (Continuous), 3A (Peak with Heat Sink) |
| Efficiency | Up to 92% |
| Switching Frequency | 150 KHz |
| Output Ripple | < 30mV |
| Load Regulation | $\pm 0.5\%$ |
Key Features
High Efficiency: Minimizes energy loss and heat compared to linear regulators.
Over-Temperature Protection: Includes thermal shutdown and current limit protection.
Easy Mounting: Features pre-drilled holes for secure installation in enclosures.
Stable Performance: Capable of maintaining a steady output even if the input voltage fluctuates (as long as it stays above the output).
