The AAT3223 PowerLinear NanoPower low dropout (LDO)linear regulator is ideal for portable applications whereextended battery life is critical. This device featuresextremely low quiescent current, typically 1.1μA. Dropoutvoltage is also very low, typically 190mV at 100mA. TheAAT3223 has an enable pin which, when pulled low, willput the LDO regulator into shutdown mode, removingpower from its load and offering extended power conservation capabilities for portable battery-powered applications.The AAT3223 also has a Power-OK (POK) featurewhich monitors the LDO output voltage and will alert the system if the output falls out of regulation.