AIC1730

Low Noise Low Dropout, 150mA Linear Regulator

Analog Integrations Corporation

4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC

www.analog.com.tw

DS-1730-00

May 22, 01

TEL: 886-3-5772500

FAX: 886-3-5772510

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Available in

±2% Output Tolerance.

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1.8V to 3.3V Output Voltage with 0.1V Increment.

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Active Low Shutdown Control.

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Very Low Quiescent Current.

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Very Low Dropout Voltage.

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Miniature Package (SOT-23-5 & SOT-23-6W)

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Short Circuit and Thermal Protection.

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Very Low Noise.

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Cellular Telephones.

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Pagers.

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Personal Communication Equipment.

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Cordless Telephones.

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Portable Instrumentation.

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Portable Consumer Equipment.

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Radio Control Systems.

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Low Voltage Systems.

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Battery Powered Systems.

The AIC1730 is a low noise, low dropout linear

regulator, housed in a small SOT-23-5 & SOT-23-

6W package. The device is in the “ON” state

when the

SHDN pin is set to a logic high level.

An internal P-MOSFET pass transistor is used to

achieve a low dropout voltage of 90mV at 50mA

load current. It offers high precision output voltage

of

±2%. The very low quiescent current and low

dropout voltage make this device ideal for battery

powered applications. The internal reverse bias

protection

eliminates

the

requirement

for

a

reverse voltage protection diode. The high ripple

rejection

and

low

noise

provide

enhanced

performance for critical applications. An external

capacitor can be connected to the noise bypass

pin to reduce the output noise level.

1µF

BP

VOUT

SHDN

GND

VIN

AIC1730

1µF

0.1µF

V

SHDN

+

+

Low Noise Low Dropout Linear Regulator