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PDF AIC1731 Data sheet ( Hoja de datos )
| Número de pieza | AIC1731 | |
| Descripción | Low Dropout Linear Regulator | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1731
300mA, Low Dropout Linear Regulator with Shutdown
FEATURES
Active Low Shutdown Control.
Very Low Quiescent Current.
Very Low Dropout Voltage of 470mV at 300mA
Output Current (3.0V Output Version)
1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V Output Voltage.
Short Circuit and Thermal Protection.
±2% Output Tolerance.
Miniature Package: SOT-23-5
APPLICATIONS
PDA
DSC
Notebook
Pagers
Personal Communication Equipment
Cordless Telephones
Portable Instrumentation
Portable Consumer Equipment
Battery Powered Systems
DESCRIPTION
AIC1731 is a 300mA low noise, low dropout
linear regulator, and is housed in small SOT-23-5
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 470mV low dropout voltage at 300mA
load current. 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
AIC1731 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
VIN
CIN
1µF
+
VIN
GND
VOUT
V SHDN
SHDN
BP
AIC1731
+
COUT
1µF
VOUT
CBP
0.1µF
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: 886-3-5772500
FAX: 886-3-5772510 www.analog.com.tw
DS-1731P-03 092304
1
http://www.Datasheet4U.com
1 page  
AIC1731
ELECTRICAL CHARACTERISTICS
PARAMETER
TEST CONDITIONS
SHUTDOWN TERMINAL SPECIFICATIONS
Shutdown Pin Current
Shutdown Pin Voltage (ON)
Output ON
Shutdown Pin Voltage (OFF) Output OFF
Shutdown Exit Delay Time
THERMAL PROTECTION
CBP=0.1µF, C OUT=1µF,
IOUT=30mA
Thermal Shutdown Temperature
SYMBOL MIN. TYP. MAX. UNIT
I SHDN
V SHDN
(ON)
V SHDN
(OFF)
∆t
0.1
1.6
0.6
300
µA
V
V
µS
TSD 155 ºC
Note 1 : S pecifications are pr oduction tested at T A=25°C. S pecifications ov er the -40°C to 85 °C op erating
temperature ran ge are a ssured by design, cha racterization and correlation wi th S tatistical Quality
Controls (SQC).
TYPICAL PERFORMANCE CHARACTERISTICS
60
50 1.5V
40 3.3V
30
20
10
0
01234567
VIN (V)
Fig. 1 Quiescent Current vs. VIN
700
AIC1731-33
600
500
T=80°C
400 T=50°C
300
200
T=20°C
100 T=-40°C
0 0 50 100 150 200 250 300
ILOAD (mA)
Fig. 2 VDROP vs. ILOAD
5
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet AIC1731.PDF ] | |
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