The AMS5105 series consists of positive fixed and adjustable voltage regulators ideally suited for use in battery-powered systems. These devices feature very low quiescent current (500uA or less) when supplying loads up to 500mA, and a standby current less than 500nA when disabled using the ENABLE pin (available in selected packages). These unique characteristics and the low input-output differential required for proper regulation (0.5V for output currents of 500mA) make the AMS5105 ideal for use in standby power systems. Internal current limiting and thermal shutdown features provide protection for all AMS5105 series devices regardless of package type. The AMS5105 is offered as fixed voltage regulators in the 5 lead SOT-23, SOT-89, SOT-223, and 8 lead SOIC packages, and as adjustable voltage regulators in the 5 lead SOT-23 and 8 lead SOIC packages. All devices in the 5 lead SOT-23 and 8 lead SOIC packages are provided with ENABLE pin.