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Mudule
LM2596 DC-DC Step Down
$2.00
In Stock (57 available)
The LM2596 is a popular DC-DC buck converter module that steps down a higher DC voltage to a lower one efficiently. It’s widely used in battery-powered projects, power supplies, and DIY electronics.
Key Features:
- Input Voltage: 4V – 40V DC
- Output Voltage: Adjustable (usually 1.25V – 35V)
- Output Current: Up to 2A–3A (with heat sink)
- Efficiency: ~75%–90%
- Regulator Chip: LM2596S (switching regulator)
- Some versions include voltmeter display
Use Cases:
- Powering Arduino from a 12V battery
- Charging circuits (with protection)
- Powering LEDs, fans, sensors
- Replacing linear regulators like 7805 (more efficient)
How to Use:
- Connect VIN+ and VIN- to your power source (e.g., 12V)
- Connect VOUT+ and VOUT- to your load
- Adjust the potentiometer (small screw) to set desired output voltage
(use multimeter to measure)
Notes:
- Some modules don’t have reverse polarity protection — double-check before powering!
- Current rating depends on heat dissipation (consider adding heatsink for >1.5A)
- Not a constant current module unless explicitly stated