USB限流开关,通过软启动电路能有效的减小热插拔过程中产生的巨大尖峰电流.并针对USB系统工作时可能出现的意外情况,通过限流开关内部电路实现过流检测、过流保护、欠压锁定和过热保护功能. PL2700 USB限流开关IC, 特点: ? Compliant to USBSpecifications ? Integrated 80mΩ Power MOSFET ? Low Supply Current15μA Typical at Switch On State1μA Typical at Switch Off State ? Wide InputVoltage Range:2.4V to 5.5V ? Fast Transient Response:<2μs ? Reverse Current Flow Blocking ? ThermalShutdownProtection ? Hot Plug-In Application (Soft-Start) ? Available in a 5-Pin SOT23-5Package