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LYT2005K - LYTSwitch-2 Offline Flyback Switcher IC

The LYT2005K from Power Integrations is a high-performance offline flyback switcher IC designed for isolated AC-DC power conversion applications up to 12W. Featuring an integrated 725V MOSFET and operating at 85kHz switching frequency, this LYTSwitch-2 family device delivers reliable, efficient power conversion in a compact 12-ESOP surface-mount package.

Key Features & Benefits

  • Integrated 725V High-Voltage MOSFET - Reduces component count and board space
  • 12W Maximum Output Power - Ideal for auxiliary supplies, LED drivers, and low-power adapters
  • 85kHz Switching Frequency - Enables compact transformer design
  • Wide Operating Temperature Range - -40°C to 150°C (TJ) for industrial and automotive applications
  • Isolated Flyback Topology - Provides safe galvanic isolation between input and output
  • 55% Maximum Duty Cycle - Optimized for flyback converter efficiency
  • Surface Mount 12-ESOP Package - Compact footprint with exposed pad for enhanced thermal performance

Applications

  • Auxiliary power supplies for industrial equipment
  • LED lighting drivers
  • Smart home and IoT device power
  • Battery chargers and adapters
  • White goods and appliances
  • Telecom and networking equipment

Why Choose Our LYT2005K?

As an authorized distributor of Power Integrations products, we guarantee 100% authentic components with full manufacturer traceability and documentation. Every LYT2005K ships with:

  • ✓ Full manufacturer warranty and support
  • ✓ Complete datasheets and reference designs
  • ✓ RoHS compliant certification
  • ✓ Fast global shipping from authorized stock
  • ✓ Technical design-in assistance available

Need help with your design? Our technical team can provide reference designs, application notes, and design-in support for the LYT2005K and the complete LYTSwitch-2 family.

Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-2
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 55%
Frequency - Switching 85kHz
Power (Watts) 12 W
Fault Protection -
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad
Supplier Device Package 12-ESOP
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY