AIC1722
300mA Low Dropout Linear Regulator
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC www.analog.com.tw
DS-1722-01 TEL: 886-3-5772500 FAX: 886-3-5772510 1
onesansinv FEATURES
tensans Low Dropout Voltage of 130mV at 100mA
Output Current (5.2V Output Version).
tensans Guaranteed 300mA Output Current.
tensans Internal 1.3Ω P-MOSFET Draws no Base
Current.
tensans Low Ground Current at 55µA.
tensans 2% Accuracy Output Voltage of 3.3V/ 3.5V/
3.7V/ 3.8V/ 5.0V/ 5.2V.
tensans Input Voltage Range up to 12V.
tensans Needs only 1µF for Stability.
tensans Current and Thermal Limiting.
onesansinv APPLICATIONS
tensans Voltage Regulator for CD-ROM Drivers.
tensans Voltage Regulator for LAN Cards.
tensans Voltage Regulator for Microprocessor.
tensans Wireless Communication Systems.
tensans Battery Powered Systems.
onesansinv DESCRIPTION
The AIC1722 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1722 include zero base current loss, very
low dropout voltage, and 2% accuracy output
voltage. Typical ground current remains
approximately 55µA, from no load to maximum
loading conditions. Dropout voltage at 100mA
output current is exceptionally low: 130mV for
the AIC1722-50 and AIC1722-52, 180mV for
the AIC1722-33, AIC1722-35, and AIC1722-37
AIC1722-38. Output current limiting and thermal
limiting are built in to provide maximal
protection to the AIC1722 against fault
conditions.
The AIC1722 comes in the popular 3-pin
SOT-89 and TO-92 packages.
onesansinv
TYPICAL APPLICATION CIRCUIT

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AIC1722
10µF
C
OUT
V
OUT
VOUT
GND
VIN
1µF
C
IN
V
IN
Low Dropout Linear Regulator