SPX2954AU3-3.3中文资料西伯斯数据手册PDF规格书

PRODUCT DESCRIPTION

The SPX2954 is a low power voltage regulator. This device is an excellent choice for use in battery-powered applications such as cordless telephones, radio control systems, and portable computers. The SPX2954 features very low quiescent current (75µA Typ.) and very low dropout voltage. This includes a tight initial tolerance of ± 0.5 max and ± 1 max., and very low output temperature coefficient, making the SPX2954 useful as a low-power voltage reference. The key SPX2954 features include protection against reversed battery, fold-back current limiting, and automotive load dump protection (60V positive transient).

FEATURES

• Output Accuracy 5V, 3.3V,@ 250mA Output

• Very Low Quiescent Current

• Low Dropout Voltage

• Extremely Tight Load And Line Regulation

• Very Low Temperature Coefficient

• Current & Thermal Limiting

• Improved Replacement With Hight IOUT For LP2954 Sockets

SPX2954 Version Over LP2954

• Error Flag Warns Of Output Dropout

• Logic-Controlled Electronic Shutdown

• Output Programmable From 1.24V to 29V

• Input Can Withstand -20V Reverse Battery & +60 Positive Transient

APPLICATIONS

• Battery Powered Systems

• Cordless Telephones

• Radio Control Systems

• Portable/Palm Top/Notebook Computers

• Portable Consumer Equipment

• Portable Instrumentation

• Automotive Electronics

• SMPS Post-Regulator

• Voltage Reference

• Avionics