LNK6663K

Power Integrations LNK6663K - LinkSwitch™-HP Family AC-DC Offline Switcher

The LNK6663K is a high-performance, integrated offline switcher IC from Power Integrations' LinkSwitch-HP family, designed for cost-effective, space-saving flyback power supply applications up to 35W. This surface-mount device combines a 650V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry on a single chip.

Key Features & Benefits

• Integrated 650V MOSFET - Reduces component count and board space
• 35W output power - Ideal for consumer electronics, industrial controls, and LED lighting
• 120-136 kHz switching frequency - Enables compact transformer design
• Comprehensive protection - Current limiting, over-temperature, over-voltage, over-load, and short-circuit protection
• 64% maximum duty cycle - Optimized for flyback topology efficiency
• -40°C to 150°C junction temperature range - Suitable for demanding industrial environments
• RoHS compliant - Meets environmental standards

Typical Applications

• AC-DC power adapters and chargers
• Auxiliary power supplies for industrial equipment
• LED driver circuits
• Home appliances and white goods
• Standby and bias supplies

Why Choose Authorized Distribution?

When you purchase the LNK6663K from our authorized channel, you receive genuine Power Integrations components with full manufacturer traceability, warranty support, and access to technical documentation including reference designs and application notes. We support long lifecycle programs to help you avoid obsolescence risks in critical designs.

• LNK6663K.pdf