
Micrel
General Description
The MIC2526 is a dual integrated high-side power switch with independent enable and flag functions, optimized for selfpowered 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
• 2 independent switches
• 3V to 5.5V input
• 500mA minimum continuous load current per port
• 140mΩ maximum on-resistance
• 1.25A maximum short circuit current limit
• Individual open-drain fault flag pins
• 110µA typical 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
• 8-pin SOIC and DIP packages
APPLICATIONs
• USB host and self-powered hubs
• USB bus-powered hubs
• Hot plug-in power supplies
• Battery-charger circuits