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AMS2950ACN-30 Datasheet(PDF) 1 Page - Advanced Monolithic Systems |
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AMS2950ACN-30 Datasheet(HTML) 1 Page - Advanced Monolithic Systems |
1 / 14 page Advanced Monolithic Systems, Inc. 6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140 Advanced AMS2950/AMS2951 Monolithic 150mA LOW DROPOUT VOLTAGE REGULATOR Systems FEATURES APPLICATIONS •• 5.0V, 3.3V, 3.0V and 2.5V Versions •• Battery Powered Systems •• High Accuracy Output Voltage •• Portable Consumer Equipment •• Extremely Low Quiescent Current •• Cordless Telephones •• Low Dropout Voltage •• Portable (Notebook) Computers •• Extremely Tight Load and Line Regulation •• Portable Instrumentation •• Very Low Temperature Coefficient •• Radio Control Systems •• Current and Thermal Limiting •• Automotive Electronics •• Needs Minimum Capacitance (1µµF) for Stability •• Avionics •• Unregulated DC Positive Transients 60V •• Low-Power Voltage Reference ADDITIONAL FEATURES (AMS2951 ONLY) •• 1.24V to 29V Programmable Output •• Error Flag Warning of Voltage Output Dropout •• Logic Controlled Electronic Shutdown 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, making these devices useful as a low-power voltage reference. The AMS2950 is offered in the 3-pin TO-92 package. AMS2951 is available in 8-pin plastic SOIC and DIP packages and offers three major additional system features. An error flag output warns of a low output voltage, often due to failing batteries on input. The AMS2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and off. The AMS2951 device may be pin-strapped for a 5.0V, 3.3V, 3.0V or 2.5 output, or programmed from 1.24V to 29V with an external pair of resistors. ORDERING INFORMATION PIN CONNECTION PACKAGE TYPE OPERATING TO-92 8 LEAD PDIP 8 LEAD SOIC TEMP. RANGE AMS2950ACN-X AMS2951ACP- AMS2951ACS-X IND. AMS2950CN-X AMS2951CP-X AMS2951CS-X IND X = 3.3V, 3.0V, 2.5V 8L SOIC/ 8L PDIP 1 2 8 4 3 7 5 6 V TAP ERROR FEEDBACK OUTPUT SENSE SHUTDOWN INPUT GROUND Top View TO-92 OUTPUT INPUT GND Bottom View |
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