LNK520P

LNK520P - LinkSwitch® Offline Switcher IC

The LNK520P from Power Integrations is a high-performance integrated offline switcher designed for low-power AC-DC conversion applications. This compact flyback topology IC combines a 700V power MOSFET, oscillator, simple ON/OFF control scheme, high-voltage switched current source, frequency jittering, cycle-by-cycle current limit, and thermal shutdown circuitry onto a single monolithic device.

Key Features & Benefits

• Integrated 700V Power MOSFET: Eliminates external switching components for simplified design
• 5.5W Output Power: Ideal for low-power applications including standby supplies, auxiliary power, and consumer electronics
• Comprehensive Protection: Built-in current limiting, open loop detection, over-temperature shutdown, and short circuit protection ensure reliable operation
• Frequency Jittering: 30-42kHz switching range reduces EMI and simplifies filter design
• Wide Operating Range: -40°C to 150°C junction temperature for industrial and automotive applications
• Through-Hole Package: 8-DIP format for easy prototyping and reliable manufacturing

Typical Applications

• AC-DC power supplies for consumer electronics
• Standby and auxiliary power supplies
• Battery chargers and adapters
• Home appliances and white goods
• Industrial control and automation equipment

Why Choose LNK520P? The LinkSwitch family offers the lowest component count, highest efficiency, and best reliability for low-power AC-DC conversion. With Power Integrations' proven track record in power management solutions, the LNK520P delivers exceptional performance and long-term reliability for your design.

• LNK520P.pdf