General Description

The MIC2529 is a high-side power switch optimized for self-powered (individual port switching) and bus-powered (ganged port switching) Universal Serial Bus (USB) hub applications. An on-board voltage regulator provides the 3.3V supply voltage needed for many USB microcontrollers reducing board component count.

Features

• Compliant to USB specifications

• UL Recognized Component

• On-board 3.3V, 100mA low-dropout regulator

• 500mA minimum continuous switch load current

• 160mΩ maximum on-resistance

• 750mA typical current limit

• Open-drain fault flag pin for switch

• Output can be forced higher than input (off-state)

• Thermal shutdown

• 1ms turn-on (soft-start) and fast turnoff

• Available with active-high or active-low switch enable

• Active-high enable on 3.3V regulated output

• 8-pin SOIC package

Applications

• USB self-powered hubs

• USB bus-powered hubs

• USB keyboard hubs