LYT4212E2 is a control and power integrated circuit device manufactured by Power Integrations. It is a single-channel, active clamped, three level active clamp forward converter that offers an industry leading MOSFET current, up to 1.9A and up to 20V VDS. This device features an adjustable current-limit, programmable soft start, under-voltage lock, integrated active clamp and UVLO, as well as cycle-by-cycle current limit protection. The LYT4212E2 also offers fast transient response and excellent line/load regulation characteristic that help to minimize output ripple. This integrated circuit also has an optimized cost, space and components count which is beneficial for general power adapter applications, including notebooks, IPCs, HDDs, gaming consoles, etc.