MIC2536 Datasheet | Microchip Technology

Dual USB Power Distribution Switch Features - pliant to USB specifications - 2.7V to 5.5V operating range - 150 m A minimum continuous load current per channel - 400mΩ typical on-resistance - Fast-acting short circuit protection with thermal shutdown - Integrated filter eliminates false overcurrent flag assertions - Individual open-drain fault flag pins with transient filter - 3V/5V-patible enable inputs - Active-high (-1) and active-low (-2) versions - Reverse-current blocking in off mode (no “body diode”) - Soft-start circuit - 100 μA maximum on-state supply current - <1 μA typical off-state supply current - - 40°C to 85°C operation Applications - USB keyboard bus-powered hubs - USB bus-powered docking stations - Note Book PCs - PDAs - General purpose power distribution applications - PC board hot swap - Inrush current-limiting General Description The MIC2536 is a cost-effective high-side power switch, with two independently controlled channels, optimized for bus-powered Universal Serial Bus (USB) applications. Few external ponents are necessary to satisfy USB requirements. Each switch channel of the MIC2536 will supply up to 100 m A as required for USB bus-powered downstream devices. Fault current is limited to typically 275 m A by fast-acting current-limit circuitry which minimizes voltage droop on the upstream port during fault conditions. A flag output with transient filter indicates fault conditions to the local USB controller but will ignore short flag signals resulting from inrush current during hot plug-in events. Soft start eliminates the momentary voltage droop on other ports that may occur when the switch is enabled in bus-powered applications. Additional Features include thermal shutdown to prevent catastrophic switch failure from high-current loads and 3.3V and 5V logic patible enable inputs. The MIC2536 is available in active-high and active-low versions in 8-lead SOIC and MSOP. Package...