TOP223Y Offline PWM Switcher IC

01 January 1970 User Review

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25 in stock

The second generation TOPSwitch™-II family is more cost effective and provides several enhancements over the first generation TOPSwitch family. The TOPSwitch-II family extends the power range from 100W to 150W for 100/115/ 230 VAC input and from 50W to 90W for 85-265 VAC universal input. This brings TOPSwitch technology advantages to many new applications, i.e. TV, Monitor, Audio amplifiers, etc.


  • Lowest cost, lowest component count switcher solution  
  • Cost competitive with linears above 5 W
  •  Very low AC/DC losses – up to 90% efficiency
  •  Built-in Auto-restart and Current limiting
  •  Latching Thermal shutdown for system level protection
  • Implements Flyback, Forward, Boost or Buck topology
  •  Works with primary or opto feedback
  •  Stable in discontinuous or continuous conduction mode
  •  Source connected tab for low EMI
  •  Circuit simplicity and Design Tools reduce time to market


  • Supply Current: 1.2 mA
  • Supply Voltage: 85-265VAC
  • Output Voltage: 5.7 V
  • Power (Watts): 50W
  • Switching Frequency: 100 kHz
  • Package: TO-220
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