SY6861B1ABC - 5.5V, 3A Low Loss Power Distribution Switch With Reverse Block Rating Up to 28V


  • Input Voltage: 2.5V to 5.5V
  • Output Voltage Withstanding 28V
  • ·Extremely Low Power Path Resistance: 45mΩ (typ.)
  • 3A Load Current Capability
  • ·Reverse Blocking in Normal Operation or Shutdown
  • Fault Flag (OCB) Output For Over Current and Fault Conditions
  • Compact Package: SOT23-6
  • RoHS Compliant and Halogen Free
  • UL Certification NO. E491480

Typical Application


SY6861B1 is an ultra-low RDS(ON), 3A low loss power distribution switch with current limit to protect the power source from over current and short circuit conditions.

SY6861B1 has over voltage protection and the output pin can withstand 28V. It incorporates the over-temperature protection and reverse blocking functions.


  • USB 3.1 Application
  • USB3GDatacard
  • USB Dongle
  • MiniPCI Accessories
  • USB Charger
  • Public Place Multi-USB Charger

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