LM2596 Adjustable Power Supply Module

The LM2596 Adjustable Power Supply Module is a step-down (buck) DC-DC converter built around the LM2596 switching regulator. It takes a higher DC voltage, such as 12 V or 24 V, and converts it efficiently to a lower voltage that you set with the multi-turn potentiometer on the board. It is a common way to power Arduino, ESP32, sensors, LED strips and small motors from a battery or adapter.

LM2596 Adjustable Power Supply Module Specifications

• Regulator IC: LM2596 adjustable, 150 kHz switching
• Type: step-down (buck) DC-DC converter
• Input voltage: up to 40 V DC
• Output voltage: adjustable from about 1.25 V, at least 1.5 V below the input
• Output current: up to 3 A peak, about 2 A continuous without extra cooling
• Adjustment: multi-turn trimmer potentiometer
• Connections: IN+ / IN− and OUT+ / OUT− pads

LM2596 Adjustable Power Supply Module Applications

• Powering Arduino and ESP32 boards from 12 V or 24 V supplies
• Running 5 V sensors, servos and USB devices from a car or solar battery
• Simple adjustable supply for testing circuits on the bench
• Driving LED strips and small DC loads at a set lower voltage

What's in the Box

• 1 × LM2596 adjustable step-down power supply module

Tip: Set the output with a multimeter before you connect your load, because the module may arrive set to a voltage that could damage a 3.3 V or 5 V board. Double-check the input polarity before powering up, and add a heatsink if you draw close to 2 A for long periods.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.