The LT1249CN8#PBF is a Power Factor Correction (PFC) 8 Pin Power Factor Correction controller manufactured by Analog Devices. It is an integrated circuit (IC) designed to improve the power factor of an AC to DC power conversion system. The IC provides both active and passive power factor correction, thus allowing for smoother, more efficient power delivery to the end user. It offers programmable operating frequency, phase advance angle, and protection features such as over-temperature, open-phase, and current limiting. The LT1249CN8#PBF is a low-cost, single-chip solution with a maximum package rating of 135°C for improved reliability.