The MC34063ACD-TR is a buck-boost switching regulator manufactured by STMicroelectronics. This IC (integrated circuit) is positive or negative adjustable and includes a voltage output of 1.25V with an output current of 1.5A maximum. The size of the component is 8-SOIC with a width of 0.154", or 3.90mm. It features an adjustable frequency up to 500kHz, and can be used for either step-up (boost) or step-down (buck) applications. Additionally, it provides undervoltage lockout and current limiting, overload protection, and thermal shutdown capabilities. This part is suitable for applications such as LED lighting, battery chargers, regulated DC/DC converters, microprocessor power supply, and other low power power supplies.