AIC1740
Low Output Voltage, 500mA Low Dropout
Linear Regulator
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FEATURES
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DESCRIPTION
The AIC1740 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1740 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 is exceptionally low.
Output current limiting and thermal limiting are
built in to provide maximal protection to the
AIC1740 against fault conditions.
The AIC1740 comes in the popular SOT-223,
TO-251 and TO-252 packages.
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Low Dropout Voltage of 900mV at 500mA
Output Current (3.0V 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 1.8V/ 2.0V/
2.5V/ 2.7V/ 3.0V.
Input Voltage Range up to 12V.
Needs only 4.7µF for Stability.
Current and Thermal Limiting.
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APPLICATIONS
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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.
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TYPICAL APPLICATION CIRCUIT
VIN
V
I N
VOUT
AIC1740
V
OUT
+
1
µ
F
C
I N
GND
+
10
µ
F
C
OUT
Low Dropout Linear Regulator
Analog Integrations Corporation
DS-1740-00 Aug 2, 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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AIC [ ANALOG INTERGRATIONS CORPORATION ]
