AIC1733
500mA, Low Dropout Linear Regulator
with Shutdown
ꢀFEATURES
ꢀDESCRIPTION
ꢁ Active Low Shutdown Control.
AIC1733 is a 500mA low noise, low dropout
ꢁ Very Low Quiescent Current.
linear regulator, and is housed in small SOT-23-5
ꢁ Very Low Dropout Voltage of 650mV at 500mA
Output Current (3.0V Output Version)
ꢁ 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V Output
Voltage.
package. The device is in the “ON” state when
the SHDN pin is set to logic high level. An
internal P-MOSFET pass transistor is used to
achieve 650mV low dropout voltage at 500mA
load current. It offers high precision output
ꢁ Short Circuit and Thermal Protection.
ꢁ ±2% Output Tolerance.
ꢁ Miniature Package: SOT-23-5, TO-252-5,
SOT-89-5
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
AIC1733 provide enhanced performance for
critical applications. The noise bypass pin can be
connected an external capacitor to reduce the
output noise level.
ꢀAPPLICATIONS
ꢁ PDA
ꢁ DSC
ꢁ Notebook
ꢁ Pagers
ꢁ Personal Communication Equipment
ꢁ Cordless Telephones
ꢁ Portable Instrumentation
ꢁ Portable Consumer Equipment
ꢁ Battery Powered Systems
ꢀTYPICAL APPLICATION CIRCUIT
VIN
VIN
VOUT
V
OUT
+
C
IN
+
C
1 F
µ
OUT
µ
4.7 F
GND
(Note1)
BP
SHDN
C
BP
SHDN
0.1 F
µ
AIC1733
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.
DS-1733G-01 120408
TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw
1