DESCRIPTION

The SPX3940 is a 1A, accurate voltage regulators with a low drop out voltage of 280mV(typical) at 1A. These regulators are specifically designed for low voltage applications that require a low dropout voltage and a fast transient response. They are fully fault protected against over-current, reverse battery, and positive and negative voltage transients.

FEATURES

■1% Output Accuracy SPX3940A

■Guaranteed 1.5A Peak Current

■Low Quiescent Current

■Low Dropout Voltage of 280mV at 1A

■Extremely Tight Load and Line Regulation

■Extremely Fast Transient Response

■Reverse-battery Protection

■Internal Thermal Protection

■Internal Short Circuit Current Limit

■Replacement for LM3940

■Standard SOT-223, TO-220 and TO-263 packages

APPLICATIONS

■Powering VGA & Sound Card

■Automotive Electronics

■LCD Monitors

■Cordless Telephones

■Power PCTM Supplies

■SMPS Post-Regulator

■Laptop, Palmtop, and Note book Computer

■High Efficiency Linear Power Supplies

■Portable Instrumentation

■Constant Current Regulators