Power Integrations LNK354G

LNK354G - LinkSwitch-HF Offline Switcher IC

The LNK354G from Power Integrations is a high-performance offline switcher IC in the LinkSwitch-HF family, designed for compact, efficient AC-DC power conversion applications up to 5W. This integrated solution combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry in a single surface-mount package.

Key Features & Benefits

• Integrated 700V MOSFET: Eliminates external switching components for simplified design
• 5W Power Output: Ideal for low-power applications including standby supplies, auxiliary power, and smart home devices
• 200kHz Switching Frequency: Enables use of smaller, cost-effective transformers and output capacitors
• Comprehensive Protection: Built-in current limiting, open loop detection, over-temperature shutdown, and short circuit protection ensure reliable operation
• Flyback Topology: Proven architecture for isolated power conversion with minimal external components
• Surface Mount Package: SMD-8B (7-lead) gull wing configuration for automated assembly and space-efficient PCB layouts
• Wide Operating Temperature: -40°C to 150°C junction temperature range for demanding environments

Typical Applications

• AC-DC adapters and chargers
• Standby power supplies
• Auxiliary power for appliances
• Smart home and IoT devices
• Industrial control systems
• LED lighting drivers

Quality & Reliability: As an authorized distributor of Power Integrations components, we provide genuine LNK354G ICs with full traceability and manufacturer warranty support. Each component is sourced directly from Power Integrations or authorized channels, ensuring authenticity and long-term availability for your critical applications.

• LNK354G.pdf