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Product attributes Property Value
Manufacturer Power Integrations
Product Series LYTSwitch™-4
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 725V
Topology Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 99.9%
Frequency - Switching 140kHz
Power (Watts) 25 W
Fault Protection -
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Supplier Device Package eSIP-7F

LYT4315L - Power Integrations LYTSwitch-4 AC-DC Offline Switching IC

The LYT4315L is a high-performance 25W AC-DC offline switching IC from Power Integrations' LYTSwitch-4 family. Designed for isolated power supply applications, this integrated controller features an internal 725V breakdown switch and supports multiple topologies including flyback, step-down (buck), and step-up (boost) configurations.

Key Features & Benefits

  • Integrated 725V Switch: High voltage capability for universal input applications
  • 25W Power Output: Ideal for LED drivers, auxiliary supplies, and consumer electronics
  • Multi-Topology Support: Flyback, buck, and boost configurations for design flexibility
  • 140kHz Switching Frequency: Enables compact transformer design
  • 99.9% Duty Cycle: Excellent efficiency and performance
  • Wide Operating Temperature: -40°C to 150°C (TJ) for industrial applications
  • eSIP-7F Package: Through-hole mounting with formed leads for easy assembly

Typical Applications

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

Why Choose LYT4315L?

The LYTSwitch-4 series delivers exceptional reliability and performance for cost-sensitive applications. With integrated protection features and Power Integrations' proven technology, the LYT4315L simplifies design while ensuring long-term reliability. Available from authorized distributors with full manufacturer documentation and traceability.

Authorized Distributor: All products ship with full manufacturer documentation, authenticity guarantees, and traceability for long lifecycle support.