AIC AIC1723-50CE 500ma low dropout linear regulator Datasheet

AIC1723
500mA Low Dropout Linear Regulator
FEATURES
Low Dropout Voltage of 750mV at 500mA
Output Current (5.0V Output Version).
Guaranteed 500mA Output Current.
Internal 1.5Ω P-MOSFET Draws no Base
Current.
Low Ground Current at 65µA.
2% Accuracy Output Voltage of 3.3V/ 3.5V/
3.7V/ 3.8V/ 5.0V/ 5.2V.
Input Voltage Range up to 12V (5.0V Output
Version).
Needs only 4.7µF for Stability.
Current and Thermal Limiting.
AIC1723 include zero base current loss, very
low dropout voltage, and 2% accuracy output
voltage.
The AIC1723 is a 3-pin low dropout linear
regulator. The superior characteristics of the
DESCRIPTION
Typical
ground
current
remains
approximately
65µA, from no load to maximum loading
conditions. Dropout voltage at 500mA output
current is exceptionally low: 750mV for the
AIC1723-50 and AIC1723-52, 900mV for the
AIC1723-38, AIC1723-37, AIC1723-35, and the
AIC1723-33. Output current limiting and thermal
limiting are built in to provide maximal protection
to the AIC1723 against fault conditions.
APPLICATIONS
The AIC1723 comes in the popular SOT-223,
Voltage Regulator for CD-ROM Drivers.
Voltage Regulator for LAN Cards.
Voltage Regulator for Monitor Microprocessor.
Voltage Regulator for RAM Module.
Wireless Communication Systems.
Battery Powered Systems.
TO-251 and TO-252 packages.
TYPICAL APPLICATION CIRCUIT
VIN
VOUT
AIC1723
VIN
+
1µF
CIN
GND
VOUT
+
10µF
COUT
Low Dropout Linear Regulator
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1723-01
TEL: 886-3-5772500
May 3, 00
FAX: 886-3-5772510
www.analog.com.tw
1
AIC1723
ORDERING INFORMATION
PACKAGING TYPE
E: TO-252
F: TO-251
Y: SOT-223
ET: TO-252
TEMPERATURE RANGE
C: 0°C~+70°C
AIC1723-33CE
AIC1723-35CE
AIC1723-37CE
AIC1723-38CE
AIC1723-50CE
AIC1723-52CE
(TO-252)
FRONT VIEW
1: VOUT
2: GND
3: VIN
1 2 3
FRONT VIEW
1: VIN
2: GND
3: VOUT
1 2 3
AIC1723-33CF
AIC1723-35CF
AIC1723-37CF
AIC1723-38CF
AIC1723-50CF
AIC1723-52CF
(TO-251)
FRONT VIEW
1: VOUT
2: GND
3: VIN
1 2 3
AIC1723-33CY
AIC1723-35CY
AIC1723-37CY
AIC1723-38CY
AIC1723-50CY
AIC1723-52CY
(SOT-223)
FRONT VIEW
1: VOUT
2: GND
3: VIN
AIC1723-33CET
AIC1723-35CET
AIC1723-37CET
AIC1723-38CET
AIC1723-50CET
AIC1723-52CET
(TO-252)
OUTPUT VOLTAGE
33: 3.3V
35: 3.5V
37: 3.7V
38: 3.8V
50: 5.0V
PIN CONFIGURATION
ORDER NUMBER
AIC1723-XXXX
1
2
3
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage
...................................………….................................... -0.3~12V
Operating Junction Temperature Range
Storage Temperature Range
.......……….............................. -40°C~ 125°C
.........................………….......................... -65°C~150°C
Power Dissipation....…………………………………..……………..……............... 0.85W
Thermal Resistance θJC
TO-251, TO-252 Package....…….……..........
12.5°C/W
SOT-223 Package ....…………..……….............15°C/W
TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT
2
AIC1723
ELECTRICAL CHARACTERISTICS (Ta=25°°C, CIN=1µ
µF, COUT=10µ
µF, unless
otherwise specified.)
PARAMETER
Output Voltage
Output Voltage
Temperature
Coefficiency
Line Regulation
Load Regulation
(Note 2)
Current Limit
(Note 3)
TEST CONDITIONS
No Load
AIC1723-52
AIC1723-50
AIC1723-38
AIC1723-37
AIC1723-35
AIC1723-33
(Note 1)
VIN=5.5~12V
VIN=5.5~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=3.6~12V
MIN.
TYP.
MAX.
5.100
4.900
3.725
3.625
3.430
3.234
5.2
5.0
3.8
3.7
3.5
3.3
5.300
5.100
3.875
3.775
3.570
3.366
VIN=5.5~12V
VIN=5.5~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=7V, IL=0.1~500mA
VIN=7V, IL=0.1~500mA
VIN=5V, IL=0.1~500mA
VIN=5V, IL=0.1~500mA
VIN=5V, IL=0.1~500mA
VIN=5V, IL=0.1~500mA
VIN=7V, VOUT=0V
VIN=7V, VOUT=0V
VIN=5V, VOUT=0V
VIN=5V, VOUT=0V
VIN=5V, VOUT=0V
VIN=5V, VOUT=0V
3
3
3
3
3
3
20
20
20
20
20
20
650
650
650
650
650
650
V
PPM/°C
50
IL=1mA
AIC1723-52
AIC1723-50
AIC1723-38
AIC1723-37
AIC1723-35
AIC1723-33
AIC1723-52
AIC1723-50
AIC1723-38
AIC1723-37
AIC1723-35
AIC1723-33
AIC1723-52
AIC1723-50
AIC1723-38
AIC1723-37
AIC1723-35
AIC1723-33
UNIT
10
10
10
10
10
10
50
50
50
50
50
50
mV
mV
mA
3
AIC1723
ELECTRICAL CHARACTERISTICS (Continued)
PARAMETER
TEST CONDITIONS
AIC1723s
AIC1723-52
AIC1723-50
AIC1723-38
AIC1723-37
AIC1723-35
AIC1723-33
IO=0.1mA~IMAX
AIC1723-52
AIC1723-50
AIC1723-38
AIC1723-37
AIC1723-35
AIC1723-33
Dropout Voltage
(Note 4)
Ground Current
MIN.
TYP.
MAX.
UNIT
IL=0.1mA
IL=500mA
IL=500mA
IL=500mA
IL=500mA
IL=500mA
IL=500mA
0.2
750
750
900
900
900
900
10
850
850
1050
1050
1050
1050
mV
VIN=5.5~12V
VIN=5.5~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4~12V
65
65
65
65
65
65
90
90
90
90
90
90
µA
Note 1: Guaranteed by design.
Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Note 3: Current limit is measured by pulsing a short time.
Note 4: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below the value
measured with a 1V differential.
TYPICAL PERFORMANCE CHARACTERISTICS
Ground Current vs. Input Voltage
Recommended Max. Output Current v.s. Input Voltage
60
3.3V
600
Output Current IOUT (mA)
Ground Current (µA)
50
40
30
20
10
3.7V, 3.8V
3.5V
500
400
5V, 5.2V
300
3V
200
100
0
0
2
4
6
8
Input Voltage (V)
10
12
4
5
6
7
8
9
Input Voltage VIN (V)
10
11
12
4
AIC1723
TYPICAL PERFORMANCE CHARACTERISTICS
Line Regulation Response
Output Voltage
(mV, AC)
Output Voltage
(mV, AC)
Load Transient Response
(Continued)
100
100
50
50
0
COUT=10µF (Tantalum)
VOUT=5.0V
-50
0
COUT=1µF (Tantalum)
IL=1mA
VOUT=5.0V
-50
Input Voltage
(V)
Load Current
(mA)
100
250
0.1
0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
8
6
2.0
0
0.1
0.2
Time (mS)
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
Time (mS)
Load Transient Response
Dropout Voltage vs Load Current
Output Voltage
(mV, AC)
800
200
Dropout Voltage (mV)
700
100
0
COUT=1µF (Tantalum)
VOUT=5.0V
Load Current
(mA)
-100
100
250
0.1
0
600
VOUT =3.3V,3.5V, 3.7V & 3.8V
500
400
VOUT=5.0V, 5.2V
300
200
100
0.2
0.4
0.6
0.8
1.0
1.2
Time (mS)
1.4
1.6
1.8
2.0
0
100
200
300
400
500
Load Current(mA)
BLOCK DIAGRAM
VIN
VOUT
CURRENT
LIMITING
ERROR
AMP
+
-
+
THERMAL
SHUTDOWN
1.235V
Reference
GND
5
AIC1723
PIN DESCRIPTION
VOUT PIN - Output pin.
GND PIN - Power GND.
VIN PIN
- Power Supply Input.
APPLICATION INFORMATIONS
A 4.7µF (or greater) capacitor is required between
A 0.1µF capacitor (or greater) should be placed
the AIC1723 output and ground for stability.
from the AIC1723 input to ground if the lead
Without this capacitor the part will oscillate. Even
inductance between the input and power source
though most types of capacitor may work, the
exceeds 500nH (approximately 10 inches of
equivalent series resistance (ESR) should be held
trace).
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
value of this capacitor may be increased without
limit.
6
AIC1723
PHYSICAL DIMENSIONS
SOT-223 (unit: mm)
D
B1
°
13° ± 3
E
SYMBOL
MIN
MAX
A1
0.02
0.12
B
0.60
0.80
B1
2.90
3.15
C
0.24
0.35
D
6.30
6.80
E
3.30
3.70
1.80 MAX
H
e
A1
B
3 (PLCS)
13° ± 3°
e
H
6.70
7.30
SYMBOL
MIN
MAX
A
2.19
2.38
A1
1.02
1.27
b
0.55
0.89
b2
5.21
5.46
C
0.46
0.58
C1
0.46
0.58
D
5.33
5.59
E
6.35
6.73
C
0.91 MIN
2.30 (TYP.)
0° ~ 10°
13° ± 3°
SOT-223 MARKING
Part No.
Marking
Part No.
Marking
AIC1723-33
AJ33
AIC1723-38
AJ38
AIC1723-35
AJ35
AIC1723-50
AJ50
AIC1723-37
AJ37
AIC1723-52
AJ52
TO-251 (unit: mm)
E
A
b2
C1
D
L
C
b
e
2.28 (TYP.)
L
7.62 (TYP.)
A1
e
7
AIC1723
TO-252 (unit: mm)
E
C1
b2
A
D
H
L
b
e
A1
SYMBOL
A
A1
b
b2
C1
D
E
e
H
L
MIN
MAX
2.19
2.38
1.02
1.27
0.64
0.88
5.21
5.46
0.46
0.58
5.33
5.59
6.35
6.73
2.28 (TYP.)
9.40
10.42
0.51
-
8
Similar pages