PRODUCT DESCRIPTION

The ALPHA Semiconductor AS1117 is a low power positive-voltage regulator designed to meet 800mA output current and comply with SCSI-II specifications with a fixed output voltage of 2.85V. This device is an excellent choice for use in battery-powered applications, as active terminators for the SCSI bus, and portable computers. The AS1117 features very low quiescent current and very low dropout voltage of 1.2V at a full load and lower as output current decreases. AS1117 is available as an adjustable or fixed 2.85V, 3V, 3.3V, and 5V output voltages.

FEATURES

· Guaranteed 800mA Output

· Three Terminal Adjustable Or Fixed 1.5V, 2.5V, 2.85V, 3V, 3.3V & 5V

· Very Low Quiescent Current

· Low Dropout Voltage Of 1.2 Volts At Full Load

· Extremely Tight Load And Line Regulation

· Very Low Temperature Coefficient

· Fixed 2.85V Device For SCSI-II Active Terminator

· Logic-Controlled Electronic Shutdown

· Internal Overcurrent Limiting & Thermal Overload Protection

· Surface Mount Package SOT-223, TO-252, TO-220, SOT-89, TO-263, & SO-8

APPLICATIONS

· SCSI-II Active Terminator

· Portable/ Palm Top / Notebook Computers

· Battery Chargers

· Disk Drives

· Portable Consumer Equipment

· Portable Instrumentation

· SMPS Post-Regulator