General Description

The MIC2524 and MIC2527 are cost-effective high-side power switches with four independently controlled channels, optimized for self-powered and bus-powered Universal Serial Bus (USB) applications. Few external components are necessary to satisfy USB requirements.

Features

• Compliant to USB specifications

• UL Recognized Component

• 4 independent switches

• 3V to 5.5V input

• 500mA minimum continuous load current per port

• 140mΩ maximum on-resistance (MIC2524)

• 1.25A maximum short circuit current limit

• Individual open-drain fault flag pins

• 220µA on-state supply current

• 1µA typical off-state supply current

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

• Thermal shutdown

• 2.4V typical undervoltage lockout (UVLO)

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

• Active-high or active-low enable versions

• 16-pin SOIC and DIP packages

Applications

• USB bus-powered hubs

• USB self-powered hubs

• USB monitors

• USB printers