Power Integrations, Inc. AC DC Converters, Offline Switches LNK6663K-TL

The LNK6663K-TL is part of the LinkSwitch-HP family of offline switchers designed for energy-efficient power conversion. It operates with a primary-side regulation (PSR) scheme, allowing for high efficiency across a wide load range, with no-load consumption below 30 mW at 230 VAC. The device features a 650 V MOSFET and operates at a frequency of approximately 132 kHz, which helps reduce the size of transformers and power supplies. This converter supports a maximum output power of 21 W with a PCB heat sink and 35 W in open-frame configurations. It includes extensive protection features such as output short-circuit protection, overload protection, and thermal shutdown, ensuring reliable operation under various conditions. The LNK6663K-TL is suitable for applications including LCD monitors, adapters, and embedded power supplies, making it a versatile choice for engineers looking for efficient and compact power solutions.