LM2596S ADJ DC Step-down Module, High Power w/Display 2-3A (Stepdown)

The LM2596S step-down converter module is a high-power switching voltage regulator featuring an integrated digital display. It steps down DC input voltage (4V to 40V) to a stable, adjustable output voltage (1.25V to 37V), delivering a maximum output current of up to 3A.

Equipped with an internal microcontroller for precise control and measurement, this module allows users to toggle the display between input and output voltage readings using a single button. An LED indicator confirms which value is currently shown. Settings are retained even after power loss.

Specifications

• Input Voltage: 4.0 to 40 V (must exceed output voltage by at least 1.5 V)
• Adjustable Output Voltage: 1.25 to 37 V
• Maximum Output Current: 3 A (stable operating current: 2 A)
• Internal Switching Frequency: 150 kHz
• Voltmeter Measurement Accuracy: ±0.05 V
• Integrated Protections: Overheating and short-circuit
• Screw terminal connections for easy solderless wiring

Note: Mounting screws are no longer included. The PCB layout has been updated for a more compact design.