The MC34063ABD-TR is a part of STMicroelectronics, a supplier of integrated electronic components, modules, and systems. It is a low-cost, easy-to-use Pulse Width Modulation (PWM) controller. It is capable of regulating an output voltage from 1.25V to 37V and providing up to 1.5A output current. In addition, this part features over-current and thermalShutdown protection, as well as adjustable switching frequency from 100kHz to 500kHz. The MC34063ABD-TR is designed for a variety of switching applications including LED lighting, automotive, and telecom.