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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) 50 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-7C
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

LYT4217E - Power Integrations LYTSwitch-4 Series AC-DC Offline Switching IC

The LYT4217E is a high-performance, isolated AC-DC offline switching IC from Power Integrations' LYTSwitch-4 family, designed for multi-topology power conversion applications up to 50W. This integrated controller features a 725V breakdown voltage, 140kHz switching frequency, and supports flyback, step-down (buck), and step-up (boost) topologies, making it ideal for aerospace, automotive, industrial, and telecommunications power supply designs.

Key Features & Benefits

  • Multi-Topology Support: Flyback, Buck, and Boost configurations for design flexibility
  • High Voltage Rating: 725V breakdown voltage for robust performance
  • Integrated Switching: Internal switch eliminates need for external MOSFETs
  • Wide Operating Range: -40°C to 150°C junction temperature
  • High Efficiency: 99.9% duty cycle capability for optimized power conversion
  • Compact Package: eSIP-7C through-hole package for easy integration
  • RoHS Compliant: Environmentally friendly design

Applications

  • Industrial power supplies and automation equipment
  • Telecommunications infrastructure and networking gear
  • Aerospace and defense systems requiring long lifecycle support
  • Automotive auxiliary power modules
  • LED driver circuits and lighting control
  • Battery chargers and power adapters

Why Choose Authorized Distribution?

When you source the LYT4217E through our authorized distribution channel, you receive:

  • ✓ Guaranteed Authenticity: Factory-sealed components with full traceability
  • ✓ Manufacturer Documentation: Complete datasheets, application notes, and reference designs
  • ✓ Long Lifecycle Availability: Committed stock for program continuity
  • ✓ Technical Support: Design-in assistance and engineering resources
  • ✓ Global Shipping: Fast, reliable delivery through authorized logistics partners

All specifications subject to manufacturer's published datasheet. Contact us for volume pricing, lead times, and custom packaging options.