AMS2951

Advanced Monolithic Systems FEATURES 5.0V, 3.3V, 3.0V and 2.5V Versions High Accuracy Output Voltage Extremely Low Quiescent Current Low Dropout Voltage Extremely Tight Load and Line Regulation Very Low Temperature Coefficient Current and Thermal Limiting Needs Minimum Capacitance (1µF) for Stability Unregulated DC Positive Transients 60V ADDITIONAL FEATURES (AMS2951 ONLY) 1.24V to 29V Programmable Output Error Flag Warning of Voltage Output Dropout Logic Controlled Electronic Shutdown AMS2950/AMS2951 150mA LOW DROPOUT VOLTAGE REGULATOR RoHS compliant APPLICATIONS Battery Powered Systems Portable Consumer Equipment Cordless Telephones Portable (Notebook) Computers Portable Instrumentation Radio Control Systems Automotive Electronics Avionics Low-Power Voltage Reference GENERAL DESCRIPTION The AMS2950 and AMS2951 are micropower voltage regulators ideally suited for use in battery-powered systems. These devices feature very low quiescent current (typ.75µA), and very low dropout voltage (typ.45mV at light loads and 380mV at 150mA) thus prolonging battery life. The quiescent current increases only slightly in dropout. The AMS2950/AMS2951 has positive transient protection up to 60V and can survive unregulated input transient up to 20V below ground. The AMS2950 and AMS2951 were designed to include a tight initial tolerance (typ. 0.5%), excellent load and line regulation (typ. 0.05%), and a very low output voltage temperature coefficient, ...