
Micrel
General Description
The MIC2525 is an integrated high-side power switch, 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
• 3V to 5.5V input
• 500mA minimum continuous load current per port
• 140mΩ maximum on-resistance
• 1.25A maximum short circuit current limit
• 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 hosts and self-powered hubs
• USB bus-powered hubs
• Hot plug-in power supplies
• Battery-charger circuits