AIC1187的特性及应用电路
1A Ultra Low Dropout Linear Regulator
FEATURES 
Guaranteed 1A Output Current. 
Low Ground Current 
Wide OperaTIng Voltage Ranges: 2.3V to 5.5V. 
0.5?A Quiescent Current in Shutdown. 
Fixed Output Voltage of 1.5V, 1.8V, 2.5V, 3.3V 
Fast Transient Response 
Current Limit and Thermal Limit 
Available in SOT-223, TO-220, TO-263, TO-263-5, TO-252 and TO-252-5 Packages 
APPLICATIONS 
Mother Board and Notebook 
Gigabit Ethernet Switch 
Microprocessor Power Systems 
Network Cards 
Peripheral Cards 
GTL, GTL+, BTL, and SSTL Bus Terminators 
DSPs Power Supplies 
Battery Powered ApplicaTIons 
DESCRIPTION 
The AIC1187 is an ultra low dropout and high performance linear regulator with 1A output current capability. The output voltage is fixed 1.5V, 1.8V, 2.5V and 3.3V. Its low dropout voltage and fast transient response make it ideal for low voltage microprocessor applications.? 
In addition, the enable pin reduces power dissipation at shutdown mode. Current limit and thermal protection provide protection against any overload condition that would create excessive junction temperatures.
TYPICAL APPLICATION