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AIC2951D PDF даташит

Спецификация AIC2951D изготовлена ​​​​«Analog Intergrations Corporation» и имеет функцию, называемую «Low Dropout Linear Regulator».

Детали детали

Номер произв AIC2951D
Описание Low Dropout Linear Regulator
Производители Analog Intergrations Corporation
логотип Analog Intergrations Corporation логотип 

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AIC2951D Даташит, Описание, Даташиты
AIC2951/2951D
Low Dropout Linear Regulator
n FEATURES
n DESCRIPTION
l Low Dropout Voltage of 130mV at 100mA Output
Current (AIC2951/2951D-50).
l Guaranteed 150mA /300mA Output Current.
l Internal 1.3P-MOSFET Draws no Base Current.
l Low Ground Current at 55µA.
l 1% Accuracy Output of 3V/3.3V/5V.
l Error Flag Warns of Output Dropout.
l 1µA Supply Current in Shutdown Mode.
l Output Programmable from 1.235V~11V.
l Fast Transient Response.
l Needs only 1µF for Stability.
l Current and Thermal Limiting.
n APPLICATIONS
l Voltage Regulator for Pentium® CPUs.
l Wireless Communication System.
l Battery Powered Systems.
The AIC2951/ 2951D series is the enhanced
CMOS version of the LP2951. The superior char-
acteristics of the AIC2951/ 2951D series include
zero base current loss, very low dropout voltage,
and 1% accuracy output voltage. Typical 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
AIC2951-50/2951D-50, 180mV for the AIC2951-
33/ 2951D-33, and 200mV for the AIC2951-30/
2951D-30. Output current limiting and thermal
limiting are built in to provide maximal protection
to the AIC2951/2951D series from fault condi-
tions.
An error flag output, indicating when output volt-
age drops out of regulation, often due to the
falling batteries on the input, can be used for a
power-on reset. A logic-controlled shutdown
input enables the regulator to be switched on and
off. The part may be configured for a fixed output
voltage or programmed from 1.235V to 11V with
an external pair of resistors. The part comes in 8-
pin DIP or SO packages.
n TYPICAL APPLICATION CIRCUIT
VOUT=1.235(1+R1/R2)
1
VOUT
8
VIN
2
R4 SENSE
7
FB
33 3
SHDN
6
TAP
45
GND ERROR
AIC2951
R3
C1
+
470µF
VIN
390
Q1
D45H2A
VOUT
R1
C2
R2
+
1000µF
Pentium Processor Power Supply
Analog Integrations Corporation
www.analog.com.tw
DS-2951-01 Mar 13, 00
TEL: 886-3-5772500
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
FAX: 886-3-5772510
1









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AIC2951D Даташит, Описание, Даташиты
AIC2951/2951D
Low Dropout Linear Regulator
n ORDERING INFORMATION
AIC2951 X-XXXX
PACKAGE TYPE
N: PLASTIC DIP
S: SMALL OUTLINE
TEMPERATURE RANGE
C: 0 °C~+70°C
OUTPUT VOLTAGE
30 : 3.0V
33 : 3.3V
50 : 5.0V
MAX. OUTPUT CURRENT
DEFAULT : 150mA
D : 300mA
ORDER NUMBER
AIC2951-30CN
AIC2951-33CN
AIC2951-50CN
AIC2951D-30CN
AIC2951D-33CN
AIC2951D-50CN
(PLASTIC DIP)
AIC2951-30CS
AIC2951-33CS
AIC2951-50CS
AIC2951D-30CS
AIC2951D-33CS
AIC2951D-50CS
(PLASTIC SO)
PIN CONFIGURATION
TOP VIEW
VOUT 1
SENSE 2
SHDN 3
GND 4
8 VIN
7 FB
6 TAP
5 ERROR
n ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ........................… … … … … ............................................... -0.3~12V
Feedback Input Voltage..................................… … … … … .................................. -0.3~12V
Shutdown Input Voltage ................................… … … … … .................................. -0.3~12V
Error Comparator Output ......................................… … … … .............................. -0.3~12V
Operating Junction Temperature Range .............… … … … .......................... -40°C~125 °C
Storage Temperature Range ............................… … … … ............................ -65°C~150 °C
n TEST CIRCUIT
VOUT
+ COUT
10µF
SHUTDOWN
VOUT
VIN
SENSE
FB
SHDN
TAP
GND
ERROR
AIC2951
VREF
VIN
+
CIN
1µ F
1mA
2









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AIC2951D Даташит, Описание, Даташиты
AIC2951/2951D
n ELECTRICAL CHARACTERISTICS (Ta=25°C, CIN=1µF, COUT=10µF, unless oth-
erwise specified.)
PARAMETER
TEST CONDITIONS
Output Voltage
No Load
AIC2951/2951D-50
AIC2951/2951D-33
AIC2951/2951D-30
Output Voltage Tempera- (Note 1)
ture Coefficiency
Line Regulation
IL=1mA
AIC2951/2951D-50
AIC2951/2951D-33
AIC2951/2951D-30
Load Regulation
AIC2951-50
(Note 2)
AIC2951D-50
AIC2951-30/ -33
AIC2951D-30/-33
Current Limit
AIC2951-50
(Note 3)
AIC2951-30/ -33
AIC2951D-50
AIC2951D-30/ -33
Dropout Voltage
AIC2951/2951D
(Note 4)
AIC2951-50
AIC2951-33
AIC2951-30
AIC2951D-50
AIC2951D-33
AIC2951D-30
Ground Current
IO=0.1mA~IMAX
AIC2951/2951D-50
AIC2951/2951D-33
AIC2951/2951D-30
FB Reference Voltage AIC2951-50
AIC2951-30/ -33
Reference Voltage Temp.
Coef. (Note 1)
FB Pin Current
AIC2951/2951D
VIN=5.5~12V
VIN=3.6~12V
VIN=3.3~12V
VIN=5.5~12V
VIN=3.6~12V
VIN=3.3~12V
VIN=7V, IL=0.1~150mA
VIN=7V, IL=0.1~300mA
VIN=5V, IL=0.1~150mA
VIN=5V, IL=0.1~300mA
VIN=7V, VOUT=0V
VIN=5V, VOUT=0V
VIN=7V, VOUT=0V
VIN=5V, VOUT=0V
IL=0.1mA
IL=150mA
IL=150mA
IL=150mA
IL=300mA
IL=300mA
IL=300mA
VIN=5.5~12V
VIN=4~12V
VIN=4~12V
VIN=5.5~12V
VIN=3.6~12V
VIN=7V
Error Pin off Leakage
Current
Error Pin Pull Low
Voltage
AIC2951/2951D
IOL=1mA
AIC2951/2951D-50
AIC2951/2951D-33
VIN=7V
VIN=4.5V
VIN=2.9V
MIN. TYP. MAX. UNIT
4.950 5.0 5.050
3.267 3.3 3.333
V
2.970 3.0 3.030
50 150 PPM/°C
3 10
3 10
3 10
7 15
7 25
7 15
7 25
220
220
440
440
0.2 10
200 300
270 370
300 400
400 500
540 640
600 700
mV
mV
MA
mV
1.222
1.222
55
55
55
1.235
1.235
50
80
80
80
1.248
1.248
150
µA
V
PPM/°C
20 60
NA
1 µA
100 300
100 300
mV
3










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