The HP1018 is a boost controller operating in constant voltage conversion mode with Power Factor Correction (PFC) functionality. It utilizes constant on-time control to achieve high Power Factor (PF) and low Total Harmonic Distortion (THD) without the need for a multiplier. The HP1018 drives the Boost converter in quasi-resonant mode to ensure high efficiency and improved Electromagnetic Interference (EMI) performance. Featuring a specialized design for fast startup and reliable protection, it meets safety requirements.