Function: Step-down (buck) DC-DC converter for reducing higher input voltage to a stable lower output voltage.
Regulator IC: Built around the LM2596 switching regulator IC.
Input Voltage: 4V to 40V DC.
Output Voltage: Adjustable from 1.25V to 37V DC (with onboard multi-turn potentiometer).
Output Current: Up to 2A continuous (peak up to 3A with proper heat dissipation).
Efficiency: High conversion efficiency, typically 75–90% depending on input-output conditions.
Switching Frequency: ~150 kHz fixed frequency operation.
Features:
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Over-temperature and short-circuit protection.
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Onboard voltage adjustment knob.
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LED indicator (on some module versions).
Applications: Ideal for Arduino, Raspberry Pi, ESP32, battery charging, LED drivers, robotics, and general DC power supply regulation.
