流开关ic pl2700 ，可调限流0.5a-2a ，pl2702 ，可调限流1a-3a ，带短路保护。 跟pl2700 脚位pin 对pin the pl2700 is a cost-effective low voltage single p-mosfet load switch optimized for self-powered and bus-powered universal serial bus usb applications. this switch operates withinputs rangingfrom2.4vto5.5v makingitideal forboth 3v and 5v s the switch s low rds on 80m 937 meets usb voltage drop requirements. the pl2700 is also protected from thermal overload which limits power dissipation and junction temperatures. current limit threshold is programmed witha resistor from set to ground. the quiescent supply current is typically 15 956 a at switch
