KP3224DP is a high-performance, low-cost offline PWM-controlled power switch IC designed for small-power offline Buck and Buck-Boost converter applications. It integrates a 650V high-voltage MOSFET and high-voltage startup circuit, reducing external component count and simplifying power supply design.
The device uses multi-mode PWM control technology where the switching frequency automatically changes according to load conditions. This improves efficiency, enhances line/load regulation, reduces standby power consumption, and eliminates audible switching noise.
KP3224DP provides a fixed 12V output solution and includes complete protection functions such as overload protection, cycle-by-cycle current limiting, over-voltage protection, UVLO, VDD protection, and thermal protection. It is suitable for compact AC-DC power supplies used in appliances and industrial control systems.
