AIC1742

Features:

Very Low Noise, 25VRMS @ f=10~100kHz.
Very Low Quiescent Current, 35A.
Very Low Dropout Voltage, 90mV @ 50mA.
Active Low Shutdown Control.
Short Circuit and Thermal Protection.
1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 2.85V, 2.9V, 3.0V,3.3V Output Voltage.
Available in ±2% Output Tolerance.
Low Profile Package: SOT-23-5




Application

Cellular Telephones.
Pagers.
Personal Communication Equipment.
Cordless Telephones.
Portable Instrumentation.
Portable Consumer Equipment.
Radio Control Systems.
Low Voltage Systems.
Battery Powered Systems





Pinout








Specifications

Supply Voltage........................................................................................................9V
Shutdown Terminal Voltage ...................................................................................9V
Power Dissipation ..........................................................................................500mW
Operating Temperature Range ............................................................-40o~85o
Maximum Junction Temperature .......................................................................125
Storage Temperature Range..............................................................-65o~150o
Lead Temperature (Soldering, 10 sec) .............................................................260
Thermal Resistance Junction to Case................................................... .....130o/W
Thermal Resistance Junction to Ambient ...................................................220o/W
(Assume no ambient airflow, no heatsink)
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.




Description

AIC1742 is a low noise, low dropout linear regulator, and is housed in a small SOT-23-5 package. The device is in the "ON" state when the SHDN pin is set to logic high level. A low dropout voltage of 90mV at 50mA load current s performed. It offers high precision output voltage of ±2%. The quality of low quiescent current and low dropout voltage makes this device ideal for battery power applications. The internal reverse bias protection eliminates the requirement for a reverse voltage protection diode. The high ripple rejection and ow noise of AIC1742 provide enhanced performance for critical applications. The noise bypass pin can be connected an external capacitor to reduce the output noise evel.