The LM2594M-ADJ/NOPB is a fully adjustable, 4.5V to 40V, 1A Step-Down DC-DC Regulator from Texas Instruments. It features a wide range of features, including a wide 4.5V to 40V input voltage range, precision current limit, thermal shutdown protection, and short-circuit protection. It also has a low-reset voltage, high efficiency, and low-dropout voltage. It has a typical efficiency of 92% and is available in a 5-pin SOT-223 package.