7ARMS VBUS Current-Sink Protection Load Switch


  • 3V to 23V Operating Voltage Range
  • 29V Abs. Max. Rating at IN and OUT
  • 7A Continuous Current Rating
    • 15A Pulse Current Rating (duration Pd limited)
  • 11mΩ typ. On-Resistance from IN to OUT
  • Soft-Start (SS) Limits Inrush Current
  • Overvoltage Protection (OVP) at IN
    • 23V Internally Fixed
    • 4V to 23V External Resistor Programmable
  • “Ideal Diode” Reverse Current Protection (RCP)
  • Short-Circuit Protection (SCP) at OUT
  • Over-Current Protection (OCP) at OUT
  • Over-Temperature Protection (OTP)
  • Transient Voltage Suppression (TVS) at IN
    • ±90V Surge Protection (IEC61000-4-5)
    • ±8kV ESD Contact Discharge (IEC61000-4-2)
    • ±15kV ESD Air Gap Discharge (IEC61000-4-2)
  • EN Active-High Enable Logic Input
    • Auto-Retry after All Faults
    • ACOK Open-Drain Output Flag
    • Pb Free 25-bump WLCSP 2.70 x 2.70mm (0.5mm pitch)
    • RoHS and Green Compliant
  • Safety approvals
    • UL 2367, file no. E515099
  • -40°C to 85°C Operating Temperature Range


  • Notebooks, Netbooks, Ultra-Books, Tablets
  • Mini Desktop PCs
  • Docking Stations
  • Monitors

Key Electrical Specifications

Vin(Min) Vin(Max) ON Resistance Max Current OVP Trip Point Package
3V 23V 11mΩ 7ARMS Fixed: 23V Adj: 4V to 23V WLCSP55-25 2.7mm x 2.7mm

Typical Application Diagram