
Signal Processing Technologies
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