• Step-down DC-DC converter with a wide input range of 3.2V to 40V and adjustable output from 1.25V to 35V. • Maximum output current of 3A with energy conversion efficiency up to 92%. • Simple and precise voltage adjustment via an integrated potentiometer. • Equipped with a 36-micron printed circuit board and high-quality inductance. • Features high-performance solid-state capacitors and an output LED indicator. • Low ripple design effectively reduces high-frequency electrical noise. • Suitable for DIY electronics projects, Arduino, power systems, and chargers. • Important: The input voltage must be at least 1.5V higher than the desired output voltage.