AIC1730

150mA, Low Noise, Low Dropout Linear Regulator

Analog Integrations Corporation

Si-Soft Research Center

DS-1730G-01

20100118

3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.

TEL: 886-3-5772500

FAX: 886-3-5772510

www.analog.com.tw

1

FEATURES

Very Low Quiescent Current, 55

μA

Very Low Dropout Voltage, 90mV @ 50mA.

Short Circuit and Thermal Protection.

Available in

±2% Output Tolerance.

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

Active Low Shutdown Control.

Low Noise.

Low Profile Package: SOT-23-5

APPLICATIONS

Cellular Telephones.

Pagers.

Personal Communication Equipment.

Cordless Telephones.

Portable Instrumentation.

Portable Consumer Equipment.

Radio Control Systems.

Low Voltage Systems.

Battery Powered Systems.

DESCRIPTION

The AIC1730 is a low noise, low dropout linear

regulator, and is housed in a small SOT-23-5

package. The device is in the “ON” state when

the SHDN pin is set to logic high level. A low

dropout voltage of 90mV at 50mA load current is

performed. It offers high precision output voltage

of

±2%. The quality of low quiescent current and

low dropout voltage makes this device ideal for

battery power 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. The noise

bypass pin can be connected an external

capacitor to reduce the output noise level.

TYPICAL APPLICATION CIRCUIT

1

μF

BP

VOUT

SHDN

GND

VIN

AIC1730

1

μF

0.1

μF

+

+

Low Noise Low Dropout Linear Regulator