General Description

The MIC2537 is a cost-effective high-side power switch with four independently controlled channels, optimized for bus-powered Universal Serial Bus (USB) applications. Few external components are necessary to satisfy USB requirements.

Features

• Compliant to USB specifications

• 3V to 5.5V input

• 100mA minimum continuous load current per port

• 425mΩ typical on-resistance

• < 400mA current limit

• Individual open-drain fault flag leads

• 3V/5V-compatible enable inputs

• Active-high (-1) and active-low (-2) versions

• 100µA max. on-state supply current

• <1µA typical off-state supply current

• 16-lead SOP package

• –40°C to 85°C operation

Applications

• USB keyboards

• USB bus-powered docking stations

• Notebook docking stations

• Notebook PCs

• PDA

• General power distribution