AIC1742 Datasheet, PDF (1/12 Pages) Analog Intergrations Corporation – Low Noise, Low Quiescent Current, 150mA Linear Regulator with Noise Bypass

AIC1742
Low Noise, Low Quiescent Current,
150mA Linear Regulator with Noise Bypass
FEATURES
Very Low Noise, 25μV_RMS @ f=10~100kHz.
Very Low Quiescent Current, 35μA.
Very Low Dropout Voltage, 90mV @ 50mA.
Active Low Shutdown Control.
Short Circuit and Thermal Protection.
1.5V, 1.8V, 2.0V, 2.5V, 2.8V, 2.85V, 2.9V, 3.0V,
3.3V Output Voltage.
Available in ±2% Output Tolerance.
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
AIC1742 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 of AIC1742 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
V_IN
C_IN
1µF
VIN
GND
VOUT
C_OUT
2.2µF
V_OUT
V _SHDN
BP
SHDN
AIC1742
* C_IN : TAIYO YUDEN, CEJMK107BJ105MA-T
*C_OUT : TAIYO YUDEN, CEJMK107BJ225Mθ-T
C_BP
0.01µF
Low Noise Low Dropout Linear Regulator
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
TEL: [phone]
FAX: [phone] www.analog.com.tw
DS-1742P-02 010405
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