SY6863B2ABC - 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
  • Fast Role Swap Support
  • Compact Package: SOT23-6
  • RoHS Compliant and Halogen Free
  • UL Certification NO. E491480

Typical Application


The SY6863A1/A2/B1/B2 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.

The SY6863A1/A2/B1/B2 has over voltage protection and the output pin can withstand 28V. It incorporates the over-temperature protection and reverse blocking functions.

The SY6863A1/A2/B1/B2 supports USB PD3.0 fast role swap. The output voltage could recovery to USB valid voltage range in 100µs during USB PD fast role swap event.


  • USB 3.1 Application
  • USB 3G Datacard
  • USB Dongle
  • MiniPCI Accessories
  • USB Charger
  • Public Place Multi-USB Charger