The LM2576T-ADJ/NOPB is a switching regulator IC positive adjustable 1.23V 1 output 3A TO-220-5 manufactured by Texas Instruments. This integrated circuit is a step-down voltage switching regulator that operates from an input voltage of 4.5V to 40V and output current up to 3A. The output voltage is adjustable from 1.23V up to the input voltage. The LM2576T-ADJ/NOPB also features a PWM control scheme, low standby current, open circuit protection, cycle-by-cycle current limit, internal thermal shutdown, and peak current limit, making it suitable for a variety of industrial and consumer applications. The adjustable output voltage, temperature limits, and other features make the LM2576T-ADJ/NOPB an ideal solution for a variety of applications ranging from power supplies, battery charge and discharge control, motor control, and LED lighting.