LM2596S Step-Down LED Voltmeter Module

The LM2596S Step-Down LED Voltmeter Module is an adjustable DC-DC buck converter based on the LM2596S regulator, with a built-in LED voltmeter. It lowers a higher DC voltage to the level you set with the on-board potentiometer, while the display shows the voltage, so you can set the output without a multimeter. It is a popular way to power Arduino, ESP32, motors and LED strips from 12 V or 24 V supplies and batteries.

LM2596S Step-Down LED Voltmeter Module Specifications

• Regulator IC: LM2596S switching buck regulator, 150 kHz
• Input voltage: 4 V to 40 V DC
• Output voltage: 1.25 V to 37 V DC, adjustable
• Output current: up to 2 A continuous, 3 A peak with good cooling
• Display: LED voltmeter; a push button switches between input and output voltage
• Adjustment: multi-turn trimmer potentiometer
• Headroom: the input should be at least about 1.5 V above the output

LM2596S Step-Down LED Voltmeter Module Applications

• 5 V supply for Arduino and ESP32 boards from 12 V or 24 V
• Adjustable bench supply for testing circuits
• Battery-powered robots and solar projects
• LED strips and small DC motors
• Running low-voltage devices from a car's 12 V system

What's in the Box

• 1 × LM2596S step-down module with LED voltmeter

Tip: Set the output voltage with nothing connected to the output, then connect your load. Double-check the input polarity before powering up, and add a heatsink or airflow if you draw more than about 2 A.

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