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MK91806H

Ultra-Fast Turn-off Synchronous Rectifier Controller

  • Optimized for <1MHz Frequency 

  • Supports DCM, QR and CCM Operations 

  • Supports Active Clamp Flyback with GaN  FET or Super-junction MOSFET at Primary Side 

  • Operates in a Wide Output Voltage Range  Down to Zero Voltage 

  • Self-supply for Operation with Low Output  Voltage and/or High–side Rectification  without an Auxiliary Winding 

  • Gate Drive Voltage is Up to 9V 

  • 10ns Fast Turn-off and 25ns Turn-on Delay 

  • VD/HVIN Pin Supports Negative Voltage  Spikes Down to -3V 

  • Avoids Potential False Turn-on during DCM 

  • VG Clamping Circuit Works Well when VCC  is Below 2V 

  • Supports both High-side and Low-side  Rectification 

  • Adaptive Gate Drive for Maximum Efficiency

  • AC/DC Adapters for Mobile Phone and  Notebook

  • High Power density AC/DC Power  Supplies

  • SOT23-6