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Power Integrations LYT2003D-TL - 7W Flyback Offline Switcher IC

The LYT2003D-TL from Power Integrations is a high-performance AC-DC offline switcher IC from the LYTSwitch-2 family, designed for isolated flyback topology applications up to 7 watts. This surface-mount device features an integrated 725V breakdown voltage switch, 85kHz switching frequency, and operates across an extended temperature range of -40°C to 150°C (TJ), making it ideal for industrial, consumer, and smart-home power supply designs.

Key Features

  • Integrated flyback controller with internal high-voltage switch
  • 7W output power capability for compact, cost-effective designs
  • 725V breakdown voltage for robust performance and high reliability
  • 85kHz switching frequency enables smaller transformer designs
  • Isolated output for safety-critical applications
  • Wide operating temperature: -40°C to 150°C (TJ)
  • SO-8C surface-mount package for automated assembly
  • Tape & reel packaging for high-volume manufacturing

Applications

  • LED lighting drivers
  • Smart home and IoT power supplies
  • Auxiliary power for appliances
  • Industrial control and automation
  • Consumer electronics adapters

Compliance: RoHS compliant. Full traceability and manufacturer documentation available.

Datasheet: LYTSwitch-2 Family Datasheet

Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-2
Packaging Tape & Reel (TR) |
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) 7 W
Fault Protection -
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width), 7 Leads
Supplier Device Package SO-8C