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LYT5218D - LYTSwitch-5 Family AC-DC Offline Switching IC

The LYT5218D from Power Integrations is a high-performance 25W AC-DC offline switching IC featuring integrated 650V MOSFET and multi-topology support. Part of the LYTSwitch-5 family, this controller delivers exceptional efficiency and reliability for isolated power supply designs across flyback, buck, and boost topologies.

Key Features:

  • 650V breakdown voltage with integrated switch
  • 25W output power capability
  • 132.7kHz switching frequency for compact design
  • Multi-topology support: Flyback, Step-Down (Buck), Step-Up (Boost)
  • Wide operating temperature range: -40°C to 150°C (TJ)
  • Surface mount 16-SOIC package (14 active leads)
  • RoHS compliant for environmental compliance

Applications: LED drivers, auxiliary power supplies, industrial controls, smart home devices, IoT power modules, and general-purpose isolated AC-DC conversion.

Complete Technical Specifications:

Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-5
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 650V
Topology Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle -
Frequency - Switching 132.7kHz
Power (Watts) 25 W
Fault Protection -
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 16-SOIC (0.154", 3.90mm Width), 14 Leads
Supplier Device Package 16-SO B
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY