The IMP2524 and IMP2527 are complete power management solutions for bus-powered and self-powered USB hubs. Each device contains four independent power switches and fault detection logic. The IMP2524 channel resistance is a low 140mΩ maximum and the IMP2527 channel resistance is 300Ω maximum. Both device operate with voltage inputs from 2.7V to 5.5V.
   
Key Features
◆ USB Rev. 1.1 and 2.0 Compliant
◆ Four independent switches
◆ 2.7V to 5.5V input operation
◆ Low MOSFET ON resistance
    – IMP2524: 0.1Ω, 0.14Ω maximum
    – IMP2527: 0.2Ω, 0.3Ω maximum
◆ 500mA continuos load current per switch
◆ Low supply current
    – 110µA ON-state current, 0.75µA OFF-state
    current
◆ 1.25A maximum current limit, 750mA typical
◆ Thermal shutdown 2.4V undervoltage lockout
    (UVLO)
◆ Open-drain flag output
    – Undervoltage
    – Current limit
    – Thermal shutdown
◆ Output can be force higher than input
◆ Active HIGH(-1) and active LOW(-2) enable
◆ 16-pin SO and DIP packages, Die available
◆ Pin compatible with the Micrel MIC2524 and
    MIC2527
   
Applications
◆ USB host and self-powered hubs
◆ USB video monitors
◆ USB printers