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Power Integrations TOP100YAI - High-Performance Offline Switching IC

The TOP100YAI from Power Integrations is a versatile TOPSwitch® integrated offline switcher designed for reliable, efficient power conversion in demanding applications. This 30W power IC combines an integrated high-voltage MOSFET switch with advanced control circuitry, delivering exceptional performance for aerospace, automotive, industrial, telecommunications, and medical equipment.

Key Features & Benefits

  • Integrated Design: Built-in 350V high-voltage MOSFET switch eliminates external components
  • Multi-Topology Support: Compatible with boost, buck, flyback, and forward converter topologies
  • Advanced Protection: Current limiting and over-temperature protection ensure long-term reliability
  • High Efficiency: 100kHz switching frequency with 67% duty cycle maximizes power conversion efficiency
  • Wide Operating Range: Functions reliably from -40°C to 150°C junction temperature
  • Industry-Standard Package: TO-220-3 through-hole mounting for easy integration and thermal management

Ideal Applications

Perfect for AC-DC power supplies, battery chargers, auxiliary power modules, industrial control systems, and embedded power solutions requiring isolated output and compact design.

Why Choose TOP100YAI? This component offers proven reliability backed by Power Integrations' reputation for quality, comprehensive technical support, and long product lifecycle commitment - essential for mission-critical applications in aerospace, medical, and industrial sectors.


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Product attributes Property Value
Manufacturer Power Integrations
Product Series TOPSwitch®
Packaging |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 350V
Topology Boost, Buck, Flyback, Forward
Voltage - Start Up -
Voltage - Supply (Vcc/Vdd) -
Duty Cycle 67%
Frequency - Switching 100kHz
Power (Watts) 30 W
Fault Protection Current Limiting, Over Temperature
Control Features -
Operating Temperature -40°C ~ 150°C (TJ)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case TO-220-3
Supplier Device Package TO-220-3