The MC33364D from onsemi is a high-performance offline switch designed for flyback topology applications, offering robust power conversion in a compact 16-SOIC surface-mount package. As part of the GreenLine™ series, it emphasizes energy efficiency and reliability, though it is now classified as obsolete. With a 700V breakdown voltage and a 126kHz switching frequency, it is engineered for isolated AC/DC power supplies, ensuring stable operation within a 7.6V to 16V supply range. Its 15V startup voltage and frequency control mechanism enable precise power management, while integrated current limiting and over-temperature protection enhance system durability.
The MC33364D excels in low-to-medium power offline converters, including:
While obsolete, the MC33364D remains a technically competent solution for offline flyback converters, combining high voltage handling, integrated protections, and frequency stability. Its legacy in GreenLine™ efficiency and surface-mount compatibility ensures relevance in refurbishment or legacy system maintenance. Engineers should evaluate modern alternatives for new designs but may leverage this IC for proven performance in existing applications.
Download datasheets and manufacturer documentation for MC33364D