The LM2674M-3.3/NOPB is a power converter high efficiency 500mA switching voltage regulator manufactured by Texas Instruments. It allows for an input voltage of up to 28V, and produces a stable 3.3V output voltage. It provides up to 500mA of current, depending on the input voltage and load. It also features short-circuit protection, overtemperature and thermal shutdown, and overcurrent protection. The LM2674M-3.3/NOPB is suitable for SIP, DIP, and SMD installations in industrial controls, communications, power supplies, and general-purpose applications.