LNK605DG

LNK605DG - LinkSwitch-II Offline Switcher IC

The LNK605DG from Power Integrations is a highly integrated offline switcher IC designed for cost-effective, space-saving AC-DC power conversion applications up to 5.1 watts. Part of the proven LinkSwitch-II family, this device combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry onto a single chip.

Key Features & Benefits

• Integrated 700V MOSFET - Reduces component count and board space
• 5.1W output power - Ideal for low-power applications including adapters, chargers, and auxiliary supplies
• Flyback topology - Simple, cost-effective design with isolated output
• Up to 85kHz switching frequency - Enables use of smaller transformers
• Comprehensive protection - Built-in current limiting, open loop, over-temperature, and short circuit protection
• Wide operating temperature range - -40°C to 150°C (TJ) for demanding environments
• Surface mount SO-8C package - Compact 8-SOIC footprint for automated assembly
• RoHS compliant - Meets environmental standards

Typical Applications

• AC-DC adapters and chargers
• Auxiliary power supplies
• Standby power supplies
• Consumer electronics
• Industrial controls
• White goods appliances

Why Choose Power Integrations LinkSwitch-II?

Power Integrations' LinkSwitch-II family delivers exceptional reliability and performance for low-power AC-DC conversion. The highly integrated design reduces external component count, lowers system cost, and improves reliability. With comprehensive built-in protection features and proven field performance across millions of units, the LNK605DG is the trusted choice for engineers designing robust, cost-effective power supplies.

Authorized distributor - We provide genuine Power Integrations components with full traceability and manufacturer support.

• LNK605DG.pdf