AIC1722A
300mA Low Dropout Linear Regulator
ꢀFEATURES
ꢀDESCRIPTION
ꢁ Low Dropout Voltage of 470mV at 300mA Out-
The AIC1722A is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1722A 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 300mA output current is exceptionally low.
Output current limiting and thermal limiting are
built in to provide maximal protection to the
AIC1722A against fault conditions.
put Current (3.0V Output Version).
ꢁ Guaranteed 300mA Output Current.
ꢁ Maximum Input Voltage is 8V
ꢁ Low Ground Current at 55µA.
ꢁ 2% Accuracy Output Voltage of 1.8V/ 2.0V
/2.5V /2.7V/ 3.0V/ 3.3V/ 3.5V/ 3.7V/ 3.8V/ 5.0V/
5.2V.
ꢁ Needs only 1µF for Stability.
ꢁ Current and Thermal Limiting.
The AIC1722A comes in the popular 3-pin
SOT-89, TO-92 and SOT-23 packages.
ꢀAPPLICATIONS
ꢁ Voltage Regulator for CD-ROM Drivers.
ꢁ Voltage Regulator for LAN Cards.
ꢁ Voltage Regulator for Microprocessor.
ꢁ Wireless Communication Systems.
ꢁ Battery Powered Systems.
TYPICAL APPLICATION CIRCUIT
ꢀ
VOUT
VOUT
VIN
AIC1722A
V
IN
+
+
GND
1 F
OUT
µ
C
1 F
IN
µ
C
Low Dropout Linear Regulator
(CIN and COUT are electrolytic capacitor)
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
DS-1722AP-01 070204
TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw
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AIC [ ANALOG INTERGRATIONS CORPORATION ]
