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PDF AIC1739-20CZL Data sheet ( Hoja de datos )
| Número de pieza | AIC1739-20CZL | |
| Descripción | 300mA Low Dropout Linear Regulator | |
| Fabricantes | Analog Intergrations Corporation | |
| Logotipo |  |
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AIC1739
300mA Low Dropout Linear Regulator
n FEATURES
l Low Dropout Voltage of 180mV at 100mA
Output Current (3.0V Output Version).
l Guaranteed 300mA Output Current.
l Internal 1.3Ω P-MOSFET Draws no Base
Current.
l Low Ground Current at 55µA.
l 2% Accuracy Output Voltage of 1.8V/ 2.0V/
2.5V/ 2.7V/ 3.0V.
l Input Voltage Range up to 12V.
l Needs only 1µF for Stability.
l Current and Thermal Limiting.
n APPLICATIONS
l Voltage Regulator for CD-ROM Drivers.
l Voltage Regulator for LAN Cards.
l Voltage Regulator for Microprocessor.
l Wireless Communication Systems.
l Battery Powered Systems.
n DESCRIPTION
The AIC1739 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1739 include zero base current loss, very
low dropout voltage, and 2% accuracy output
voltage. Typical ground current remains
approximately 55µA, from no load to
maximum loading conditions. Dropout voltage
is exceptionally low. Output current limiting
and thermal limiting are built in to provide
maximal protection to the AIC1739 against
fault conditions.
The AIC1739 comes in the popular 3-pin
SOT-89 and TO-92 packages.
n TYPICAL APPLICATION CIRCUIT
VIN
V IN
AIC1739
VOUT
V OUT
+ 1µF
CIN
GND
+ 10µF
COUT
Low Dropout Linear Regulator
Analog Integrations Corporation 4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1739-01
TEL: 886-3-5772500 FAX: 886-3-5772510
www.analog.com.tw
1
1 page  
AIC1739
n PIN DESCRIPTION
VOUT PIN - Output pin.
GND PIN - Power GND.
VIN PIN - Power Supply Input.
n APPLICATION INFORMATIONS
A 1µF (or greater) capacitor is required between
the AIC1739 output and ground for stability.
Without this capacitor the part will oscillate. Even
though most types of capacitor may work, the
equivalent series resistance (ESR) should be held
to 5Ω or less if Aluminum electrolytic type is used.
Many Aluminum electrolytics have electrolytes
that freeze at about -30°C, so solid tantalums are
recommended for operation below -25°C. The
n PHYSICAL DIMENSIONS
l SOT-89 (unit: mm)
DA
D1
C
H
L
e
e1
SOT-89 MARKING
Part No.
AIC1739-18
AIC1739-20
AIC1739-25
AIC1739-27
AIC1739-30
Marking
AY18
AY20
AY25
AY27
AY30
E
B
value of this capacitor may be increased without
limit.
A 0.1µF capacitor (or greater) should be placed
from the AIC1739 input to ground if the lead
inductance between the input and power source
exceeds 500nH (approximately 10 inches of trace).
SYMBOL
A
B
C
D
D1
E
e
e1
H
L
MIN MAX
1.40
1.60
0.36
0.48
0.35
0.44
4.40
4.60
1.62
1.83
2.29
2.60
1.50 (TYP.)
3.00 (TYP.)
3.94
4.25
0.89
1.20
5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet AIC1739-20CZL.PDF ] | |
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