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PRODUCT DESCRIPTION

The SPX2950 and SPX2951 are low power voltage regulators. These devices are an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. The SPX2950 and SPX2951 feature very low quiescent current and very low dropout voltage (Typ. 50mV at light load and 380mV at 100mA). This include a tight initial tolerance of 0.5 typ., extremely good load and line regulation of 0.05 typ. and very low output temperature coefficient, making the SPX2950/SPX2951 useful as a low-power voltage reference. Other key additional features of this device includes higher output current (150mA), positive transient protection up to 60V (Load dump), and the ability to survive an unregulated input voltage transient of -20V below ground (reverse battery).

FEATURES

? 5.0V, 3.3V, and 3.0V Versions at 150mA Output

? Very Low Quiescent Current

? Low Dropout Voltage

? Extremely Tight Load and Line Regulation

? Very Low Temperature Coefficient

? Needs Only 1μF for Stability

? Current & Thermal Limiting

? Unregulated DC Input can Withstand -20V Reverse Battery and +60V Positive Transients

? Similar Replacement With Higher IOUT for LP2950/LP2951 Sockets

SPX2951 Versions Only

? Error Flag Warns of Output Dropout

? Logic-Controlled Electronic Shutdown

? Output Programmable From 1.24V to 29V

APPLICATIONS

? Battery Powered Systems

? Cordless Telephones

? Radio Control Systems

? Portable/Palm Top/Notebook Computers

? Portable Consumer Equipment

? Portable Instrumentation

? Avionics

? Automotive Electronics

? SMPS Post-Regulator

? Voltage Reference