The MC34063A is a monolithic DC‑to‑DC switching regulator control circuit designed for use in step‑up (boost), step‑down (buck), and voltage‑inverting power conversion applications. The device integrates a temperature‑compensated reference, comparator, controlled duty‑cycle oscillator with active current limiting, driver and a high‑current output switch — enabling efficient regulator design with a minimum number of external components.
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