AIC1723
500mA Low Dropout Linear Regulator
FEATURES
Low Dropout Voltage of 750mV at 500mA
Output Current (5.0V Output Version).
Guaranteed 500mA Output Current.
Internal 1.5Ω P-MOSFET Draws no Base
Current.
Low Ground Current at 65µA.
2% Accuracy Output Voltage of 3.3V/ 3.5V/
3.7V/ 3.8V/ 5.0V/ 5.2V.
Input Voltage Range up to 12V (5.0V Output
Version).
Needs only 4.7µF for Stability.
Current and Thermal Limiting.
DESCRIPTION
The AIC1723 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1723 include zero base current loss, very
low dropout voltage, and 2% accuracy output
voltage.
Typical
ground
current
remains
approximately
65µA, from no load to maximum loading
conditions. Dropout voltage at 500mA output
current is exceptionally low: 750mV for the
AIC1723-50 and AIC1723-52, 900mV for the
AIC1723-38, AIC1723-37, AIC1723-35, and the
AIC1723-33. Output current limiting and thermal
limiting are built in to provide maximal protection
to the AIC1723 against fault conditions.
The AIC1723 comes in the popular SOT-223,
TO-251 and TO-252 packages.
APPLICATIONS
Voltage Regulator for CD-ROM Drivers.
Voltage Regulator for LAN Cards.
Voltage Regulator for Monitor Microprocessor.
Voltage Regulator for RAM Module.
Wireless Communication Systems.
Battery Powered Systems.
TYPICAL APPLICATION CIRCUIT
VIN
V
IN
VOUT
AIC1723
V
OUT
+
1µF
C
IN
GND
+
10µF
C
OUT
Low Dropout Linear Regulator
Analog Integrations Corporation
DS-1723-01
May 3, 00
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
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