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PDF AIC1721CX Data sheet ( Hoja de datos )
| Número de pieza | AIC1721CX | |
| Descripción | 3-pin Low Dropout Linear Regulator | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1721/1721D
3-pin Low Dropout Linear Regulator
FEATURES
Low Dropout Voltage of 130mV at 100mA Output
Current (5V Output Version).
Guaranteed 150mA/300mA Output Current.
Internal 1.3Ω P-MOSFET Draws no Base Current.
Low Ground Current at 55µA.
1% Accuracy Output Voltage of 3.3V/5V.
Input Voltage Range up to 12V (5V Output
Version).
Extremely Tight Load and Line Regulation.
Fast Transient Response.
Needs only 1µF for Stability.
Current and Thermal Limiting.
APPLICATIONS
Voltage Regulator for LAN Cards.
Wireless Communication Systems.
Battery Powered Systems.
DESCRIPTION
The AIC1721/1721D is the enhanced CMOS
version of the LP2950. The superior
characteristics of the AIC1721/1721D include
zero base current loss, very low dropout voltage,
and 1% accuracy output voltage. Typica-l ground
current remains approximately 55µA, from no
load to maximum loading conditions. Dropout
voltage at 100mA output current is significantly
lower than its bipolar counterpart: 130mV for the
AIC1721-5/1721D-5, and 180mV for the
AIC1721/ 1721D. Output current limiting and
thermal limiting are built in to provide maximal
protection to the AIC1721/ 1721D against fault
conditions.
While pin-to-pin compatible with the LP2950 and
the industry industry standard 78XX series of
voltage regulators, the AIC1721/1721D comes in
the popular3-pin SOT-89 or TO-92 packages.
TYPICAL APPLICATION CIRCUIT
VIN AIC1721/
AIC1721D
VIN
+ 1µF
CIN
GND
VOUT
VOUT
+ 10µF
COUT
Negative Voltage Regulator
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1721-01
TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
1
1 page  
AIC1721
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Dropout Voltage vs Temperature
600
VOUT=5V
500
IL=300mA
400
300 IL=150mA
200
100
0
-50
-25
IL=0.1mA
0 25 50 75
Temperature(°C)
100
125
Line Transient Response
100
50
0
-50 COUT=1µF
IL=1mA
VOUT=5V
8
6
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
Time (mS)
Load Transient Response
20 COUT=10µF
VOUT=5V
0
-20
-40
-60
150
0.1
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Time (mS)
Short Circuit Current vs. Temperature
500
AIC1721D
400
300
AIC1721
200-50
-25
0
25 50
Temperature
(°C)
75
100
125
Load Transient Response
100
0
-100 COUT=1µF
-200 VOUT=5V
150
0.1
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
Time (mS)
4.5 5.0
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet AIC1721CX.PDF ] | |
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