SY6819AFAC - 1.2A load switch with Special DFF Control Function


  • Wide input voltage range: 4.5 to 18V
  • Up to 1.2A continuous load current capability
  • Low RDS(ON) : 110mΩ at VIN=12V
  • Programmable blanking time for DFF control
  • Start up Sequence:
  • SY6819: Default On when EN ON
  • SY6819A: Default Off when EN ON
  • Low shutdown current
  • Controlled turn on slew rate to avoid inrush currents
  • Over temperature shutdown with auto recovery
  • RoHS compliant and Halogen Free
  • Compact package : SOT23-6/ SO8

Typical Application


SY6819/SY6819A develops a small size, low RDS(ON) load switch capable delivering up to 1.2A continues current. The device operates over an input voltage range of 4.5 V to 18 V.
SY6819/SY6819A features a DFF (D Flip Flop) input which allows user to flexibly turn on and off the load switch. When DFF pin is pulled low for longer than blanking time, tBLK, which is programmable by CT, the device will change its output state. If the low level on DFF is shorter than tBLK, the device will remain the previous output state.
SY6819/A is available in compact SOT23-6/SO8 package. 


PON,DSL for China Telecom