AIC1730 Datasheet, PDF (1/12 Pages) Analog Intergrations Corporation – Low Noise Low Dropout, 150mA Linear Regulator

AIC1730
Low Noise Low Dropout, 150mA Linear Regulator
n FEATURES
l Available in ±2% Output Tolerance.
l 1.8V to 3.3V Output Voltage with 0.1V Increment.
l Active Low Shutdown Control.
l Very Low Quiescent Current.
l Very Low Dropout Voltage.
l Miniature Package (SOT-23-5 & SOT-23-6W)
l Short Circuit and Thermal Protection.
l Very Low Noise.
n APPLICATIONS
l Cellular Telephones.
l Pagers.
l Personal Communication Equipment.
l Cordless Telephones.
l Portable Instrumentation.
l Portable Consumer Equipment.
l Radio Control Systems.
l Low Voltage Systems.
l Battery Powered Systems.
n DESCRIPTION
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.
n TYPICAL APPLICATION CIRCUIT
VIN
C_IN ⁺
1µF
VIN
GND
VOUT
+
C_OUT
1µF
V_OUT
V^SHDN
SHDN
BP
AIC1730
C_BP
0.1µF
Low Noise Low Dropout Linear Regulator
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1730-00 May 22, 01
TEL: [phone] FAX: [phone]
www.analog.com.tw
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