致新原装芯片 G518B1TP1UTSOT-23-6FC 科瑞芯电子供应

　　General Description

　　The G518 is an integrated power switch for self-powered and bus-powered Universal Serial Bus (USB) applications with high output absolute rating of 28V.

　　Several Protection features include current limiting and thermal shutdown to prevent catastrophic switch failure caused by increasing power dissipation when continuous heavy loads or short circuit occurs. A built-in charge pump is used to drive the N-channel MOSFET that is free of parasitic body diode to eliminate any reversed current flow across the switch when it is powered off. When the output voltage/current is higher than input voltage, the power switch is turned off by internal output reverse-voltage/current comparator. FLAG is an open-drain output report over-current or over-temperature event and has typical 9ms deglitch timeout period.

　　G518D is available for fast role swap (FSR) application.

　　Features

　　► 50mΩ High-Side MOSFET

　　► 28V Absolute Ratings at VOUT

　　► Available with Current Limits with Foldback

　　► Operating Range:2.7V to 5.5V

　　► 1.5mS Typical Rise Time

　　► Fast Overcurrent Response -1.5μs (TYPICAL)

　　► Under voltage Lockout

　　► Logic Level Enable Pin, Available with Active-High or Active-Low Version

　　► No Reverse Current when Power Off

　　► Available with or without Output Shutdown Pull-low Resister

　　► Deglitched Open-Drain Over-Current Flag Output (FLAG)

　　► Output Reverse-Voltage/Current Protection

　　► Fast Role Swap Support

　　► VOUT OVP: 5.6V(TYPICAL)

　　Applications

　　► High-Side Power Protection Switch

　　► USB Power Management

　　► USB Host and Self-Powered Bubs

　　► USB Bus-Powered Hubs

　　► Hot Plug-In Power Sup