In the shutdownmode,essentiallyall internaldevicebiasingis turnedoff in orderto minimizesupplycurrentflowandthe outputgoesinto Hi-Z(highimpedance)mode.CompletedeviceTurn-onandTurn-offtimesvaryconsiderablyrelativeto the outputloadingconditions,outputvoltage,and inputimpedance,but is generallylimitedto less than1μs (seetablesfor actualdata).