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PDF AIC1742 Data sheet ( Hoja de datos )
| Número de pieza | AIC1742 | |
| Descripción | 150mA Linear Regulator | |
| Fabricantes | aic | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AIC1742 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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AIC1742
Low Noise, Low Quiescent Current,
150mA Linear Regulator with Noise Bypass
FEATURES
Very Low Noise, 25μVRMS @ 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
VIN
CIN
1µF
VIN
GND
VOUT
COUT
2.2µF
VOUT
V SHDN
SHDN
BP
AIC1742
CBP
0.01µF
* CIN : TAIYO YUDEN, CEJMK107BJ105MA-T
*COUT : TAIYO YUDEN, CEJMK107BJ225Mθ-T
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-1742P-02 010405
1
Free Datasheet http://www.datasheet4u.com/
1 page  
AIC1742
TYPICAL PERFORMANCE CHARACTERISTICS
60
AIC1742
50
40
30
TA=25°C
20 VSHDN=1.6V
10 IOUT=0mA
0
2 3 4 5 6 7 8 9 10
Input Voltage (V)
Fig. 1 Quiescent Current
14 AIC1742
12 TA=25°C
10
8
6
4
2
0
0 20 40 60 80 100 120
Output Current (mA)
Fig. 2 Ground Current
140
350
300 AIC1742
250 T=25°C
200
150
100
50
0
012345
Input Voltage (V)
Fig. 3 Short-Circuit Current
6
1.0
0.8
0.6
0.4 AIC1742-33
0.2
0.0
-0.2
-0.4
-0.6 AIC1742-15
-0.8
VIN=5V
VSHDN=1.6V
IOUT=0mA
-1.0
7
-40 -20
0
20 40 60 80 100 120
Temperature (°C)
Fig. 4 Output Voltage
35
AIC1742
30 VIN=5V
25 VSHDN=1.6V
TA=25°C
20
AIC1742-33
15
AIC1742-15
10
5
0
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Output Current (mA)
Fig. 5 Load Regulation
50
AIC1742-15
40 VSHDN=1.6V
TA=25°C
30
20 IOUT=150mA
10
IOUT=100mA
0
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
Input Voltage (V)
Fig. 6 Load Regulation
5
Free Datasheet http://www.datasheet4u.com/
5 Page 
AIC1742
100 100
10 10 COUT=4.7µF
COUT=1µF
Stable Region
0.1
1
COUT=2.2µF
0.1 Stable Region
0.01
0
20 40 60 80 100 120 140
Load Current (mA)
Fig. 20 Stable Region with extra Serial Resistor vs.
Load Current
0.01
0
20 40 60 80 100 120 140
Load Current (mA)
Fig. 21 Region of Stable COUT ESR vs. Load Current
PHYSICAL DIMENSIONS
SOT-23-5 (unit: mm)
D
A A e1 e
SEE VIEW B
WITH PLATING
b
BASE METAL
SECTION A-A
L
L1
VIEW B
GAUGE PLANE
SEATING PLANE
S
Y
M
B
O
L
A
A1
A2
b
c
D
E
E1
e
e1
L
L1
θ
SOT-25
MILLIMETERS
MIN.
0.95
0.05
0.90
0.30
0.08
2.80
2.60
1.50
0.95 BSC
1.90 BSC
0.30
0.60 REF
0°
MAX.
1.45
0.15
1.30
0.50
0.22
3.00
3.00
1.70
0.60
8°
11
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet AIC1742.PDF ] | |
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