LT1105IN DIP14 Offline Switching Regulator

SKU: O7-9-8
In Stock
EGP 190.000
In Stock

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LT1105IN DIP14 Offline Switching Regulator

DESCRIPTION Offline Switching Regulator The LT1105 Offline Switching Regulator is designed for high input voltage applications using an external FET switch. The LT1105 is available and its totem pole output drives the gate of an external FET. Unique design of the LT1105 eliminates the need for an optocoupler while still providing ±1% load and line regulation in a magnetic flux-sensed converter. This significantly simplifies the design of offline power supplies and reduces the number of components which must cross the isolation barrier to one, the transformer. The LT1105 current mode switching techniques are well suited to transformer isolated flyback and forward topologies while providing ease of frequency compensation with a minimum of external components.


  • ±1% Line and Load Regulation with No Optocoupler
  • Switch Frequency Up to 200kHz
  • Internal 1A Totem-Pole Driver (LT1105)
  • Start-Up Mode Draws Only 200µA
  • Fully Protected Against Overloads
  • Overvoltage Lockout of Main Supply
  • Protected Against Underdrive or Overdrive to FET
  • Operates in Continuous or Discontinuous Mode
  • Ideal for Flyback and Forward Topologies
  • Isolated Flyback Mode Has Fully Floating Outputs


Up to 250W Isolated Mains Converter

Up to 50W Isolated Telecom Converter

Fully Isolated Multiple Outputs

Distributed Power Conversion Networks


Additional information

Weight 0.06 kg





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