LNK6666E Offline Switcher IC

LNK6666E Offline Switcher IC 

The LNK6666E is a high-efficiency AC-DC off-line switcher IC from Power Integrations, designed to build compact, reliable, and energy-efficient switch-mode power supplies (SMPS). It integrates a high-voltage power MOSFET, controller, oscillator, and comprehensive protection circuitry into a single device, significantly reducing external component count and simplifying power supply design.

The LNK6666E is ideal for low to medium power AC-DC converters, such as mobile chargers, adapters, standby power supplies, consumer electronics, and appliance control boards. It offers excellent efficiency, very low no-load power consumption, and high reliability, helping designs meet modern energy efficiency standards.

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Applications

• AC-DC adapters and chargers
• Low and medium power SMPS power supplies
• Standby and auxiliary power supplies
• Home appliances and control modules
• IoT and smart devices
• Consumer electronics
• Industrial auxiliary power supplies

Features

• Type: AC-DC off-line switcher IC with integrated MOSFET
• Manufacturer / Family: Power Integrations LinkSwitch / InnoSwitch family
• Integrated high-voltage power MOSFET
• Wide AC input range: 85–265V AC (with proper design)
• High efficiency and very low standby power consumption
• Built-in current limit, thermal shutdown, over-voltage protection, and auto-restart protection
• Frequency jittering for low EMI
• Requires minimal external components
• Compact package suitable for high-density PCB designs
• High reliability and long service life

Switcher IC Datasheet