AIC1722A-37XXA [AIC]
300mA Low Dropout Linear Regulator;
| 型号： | AIC1722A-37XXA |
| 厂家： | 
ANALOG INTERGRATIONS CORPORATION |
| 描述： | 300mA Low Dropout Linear Regulator |
| 文件： | 总13页 (文件大小：250K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AIC1722A
300mA Low Dropout Linear Regulator
FEATURES
DESCRIPTION
Low Dropout Voltage of 470mV at 300mA
The AIC1722A is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1722A include zero base current loss,
very low dropout voltage, and 2% accuracy
output voltage. Typical ground current
remains approximately 55A, from no load to
maximum loading conditions. Dropout voltage
at 300mA output current is exceptionally low.
Output current limiting and thermal limiting are
built in to provide maximal protection to the
AIC1722A against fault conditions.
Output Current (3.0V Output Version).
Guaranteed 300mA Output Current.
Maximum Input Voltage is 8V
Low Ground Current at 55A.
2% Accuracy Output Voltage of 1.5V/1.8V/
2.0V /2.5V /2.7V/ 3.0V/ 3.3V/ 3.5V/ 3.7V/ 3.8V/
5.0V/ 5.2V.
Needs only 1F for Stability.
Current and Thermal Limiting.
The AIC1722A comes in the popular 3-pin
SOT-89, TO-92 and SOT-23 packages.
APPLICATIONS
Voltage Regulator for CD-ROM Drivers.
Voltage Regulator for LAN Cards.
Voltage Regulator for Microprocessor.
Wireless Communication Systems.
Battery Powered Systems.
TYPICAL APPLICATION CIRCUIT
VOUT
VOUT
VIN
AIC1722A
V
IN
+
+
GND
C
OUT
C
1 F
IN
1 F
(Note1)
Low Dropout Linear Regulator
Analog Integrations Corporation
Si-Soft Research Center
DS-1722AG-04 20120615
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
1
AIC1722A
ORDERING INFORMATION
AIC1722A-XXXXX XX
PIN CONFIGURATION
3
SOT-23 (U)
TOP VIEW
1: GND
2: VOUT
3: VIN
PA CK ING TY PE
TR: REEL
BG: BAG
PACKAGE TYPE
U: SOT-23
XA: SOT-89
XT: SOT-89
ZT: TO-92
1
2
SOT-89 (XA)
TOP VIEW
1: GND
2. VIN
3. VOUT
ZL: TO-92
1
2
2
3
P: Lead Free Commercial
G: Green Package
SOT-89 (XT)
TOP VIEW
1: VOUT
2. GND
OUTPUT VOLTAGE
15: 1.5V
18: 1.8V
20: 2.0V
25: 2.5V
27: 2.7V
30: 3.0V
33: 3.3V
35: 3.5V
37: 3.7V
38: 3.8V
50: 5.0V
52: 5.2V
3. VIN
1
3
TO-92 (ZTBG)
TOP VIEW
1: GND
2. VIN
3. VOUT
2
1 2 3
* Straight lead option available in bag packing type only.
* Refer to physical dimensions for lead pitch.
TO-92 (ZTTR)
TOP VIEW
1: GND
2. VIN
3. VOUT
3
Example:
AIC1722A-18PXATR
1.8V Version, in SOT-89 Package &
Tape & Reel Packing Type(lead
free)
1 2 3
* Formed lead option available in reel packing type.
* Refer to physical dimensions for lead pitch.
TO-92 (ZLBG)
TOP VIEW
1: VIN
2. GND
3. VOUT
AIC1722A-18GXATR
1.8V Version, in SOT-89 Lead Free
Package & Tape & Reel Packing
Type (green)
1
3
1 2 3
* Straight lead option available in bag packing type only.
* Refer to physical dimensions for lead pitch.
TO-92 (ZLBG)
TOP VIEW
1: VIN
2. GND
3. VOUT
1
2
3
1 2 3
* Formed lead option available in reel packing type.
* Refer to physical dimensions for lead pitch.
2
AIC1722A
SOT-23 MARKING
Part No.
PU
GU
Part No.
PU
GU
AIC1722A-15XU BN15P
AIC1722A-18XU BN18P
AIC1722A-20XU BN20P
AIC1722A-25XU BN25P
AIC1722A-27XU BN27P
AIC1722A-30XU BN30P
BN15G
BN18G
BN20G
BN25G
BN27G
BN30G
AIC1722A-33XU
AIC1722A-35XU
AIC1722A-37XU
AIC1722A-38XU
AIC1722A-50XU
AIC1722A-52XU
BN33P
BN35P
BN37P
BN38P
BN50P
BN52P
BN33G
BN35G
BN37G
BN38G
BN50G
BN52G
SOT-89 MARKING
Part No.
PXA
GXA
Part No.
PXT
GXT
AIC1722A-15XXA
AIC1722A-18XXA
AIC1722A-20XXA
AIC1722A-25XXA
AIC1722A-27XXA
AIC1722A-30XXA
AIC1722A-33XXA
AIC1722A-35XXA
AIC1722A-37XXA
AIC1722A-38XXA
AIC1722A-50XXA
AIC1722A-52XXA
AL15P
AL18P
AL20P
AL25P
AL27P
AL30P
AL33P
AL35P
AL37P
AL38P
AL50P
AL52P
AL15G
AIC1722A-15XXT
AIC1722A-18XXT
AIC1722A-20XXT
AIC1722A-25XXT
AIC1722A-27XXT
AIC1722A-30XXT
AIC1722A-33XXT
AIC1722A-35XXT
AIC1722A-37XXT
AIC1722A-38XXT
AIC1722A-50XXT
AIC1722A-52XXT
BA15P
BA18P
BA20P
BA25P
BA27P
BA30P
BA33P
BA35P
BA37P
BA38P
BA50P
BA52P
BA15G
BA18G
BA20G
BA25G
BA27G
BA30G
BA33G
BA35G
BA37G
BA38G
BA50G
BA52G
AL18G
AL20G
AL25G
AL27G
AL30G
AL33G
AL35G
AL37G
AL38G
AL50G
AL52G
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ...................................................…………..…….................. -0.3~8V
Operating Temperature Range …………….....………........…………................ -40C~ 85C
Junction Temperature ……………………………………………………………………... 125C
Storage Temperature Range ....................……......................………............. -65C~150C
Lead Temperature (Soldering. 10sec) …………………………………………………… 260C
Thermal Resistance Junction to Case
SOT-23……………………………….130C /W
SOT-89…..………………..…………..30C /W
TO-92…………………………………120C /W
SOT-23..………………………………180C /W
Thermal Resistance Junction to Ambient
(Assume no ambient airflow, no heatsink) SOT-89………………………………. 160C /W
TO-92…………………………………150C /W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
3
AIC1722A
TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT.
ELECTRICAL CHARACTERISTICS (TA=25C, CIN=1F, COUT=1F, unless
otherwise specified.) (Note 2)
PARAMETER
Output Voltage
TEST CONDITIONS
VIN=8V, No Load
MIN.
TYP.
MAX.
UNIT
-2
+2
%
IL=1mA,
Line Regulation
1.4VVOUT3.2V
3.3VVOUT5.2V
IL=0.1~300mA
1.4VVOUT3.9V
4.0VVOUT5.2V
VIN=4V~8V
3
3
10
15
mV
VIN=5.5V~8V
Load Regulation
(Note 3)
VIN=5V
VIN=7V
7
20
40
mV
mA
15
Current Limit
(Note 4)
VIN=7V, VOUT=0V
300
4.0VVOUT5.2V
3.0VVOUT3.9V
2.5VVOUT2.9V
2.0VVOUT2.4V
1.4VVOUT1.9V
400
470
500
570
Dropout Voltage
(Note 5)
IL=300mA
570
670
mV
800
900
1260
1360
IO=0.1mA~IMAX
1.4VVOUT3.9V
4.0VVOUT5.2V
Ground Current
VIN=5~8V
VIN=7~8V
55
55
80
80
A
Thermal Shutdown
Hysteresis
Guaranteed by design
20
ºC
Note 1: To avoid output oscillation, aluminum electrolytic output capacitor is recommended and ceramic
capacitor is not suggested.
Note 2: Specifications are production tested at TA =25C. Specifications over the -40C to 85C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
Note 3: Regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Note 4: Current limit is measured by pulsing a short time.
Note 5: 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.
4
AIC1722A
TYPICAL PERFORMANCE CHARACTERISTICS
2.52
2.00
AIC1722A-18
AIC1722A-25
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
2.51
2.50
2.49
2.48
2.47
2.46
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Temperature (oC)
Temperature (C)
Fig. 1 VOUT vs. Temperature
Fig. 2 VOUT vs. Temperature
5.30
5.25
5.20
5.15
5.10
3.40
AIC1722A-52
AIC1722A-33
3.35
3.30
3.25
3.20
3.15
3.10
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Temperature (C)
Fig. 3 V vs. Temperature
Temperature (C)
Fig. 4 VOUT vs. Temperature
OUT
70
65
60
55
50
45
60
58
56
54
52
50
48
46
44
42
40
AIC1722A-25
AIC1722A-18
I
LOAD =0mA
ILOAD=100mA
ILOAD=0mA
I
LOAD =300mA
ILOAD=300mA
I
LOAD=100mA
-40
-20
0
20
40
60
80
-40
-20
20
40
60
80
Te0mperature(C)
Temperature (C)
Fig. 6 Ground Current vs. Temperature
Fig. 5 Ground Current vs. Temperature
5
AIC1722A
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
80
75
70
65
60
55
50
45
40
60
58
56
54
52
50
48
46
AIC1722A-52
AIC1722A-33
ILOAD=0mA
ILOAD=100mA
ILOAD = 0mA
ILOAD = 300mA
ILOAD=300mA
ILOAD = 100mA
-40
-20
0
20
40
60
80
-40
-20
0
20
40
60
80
Temperature (C)
Temperature (C)
Fig. 7 Ground Current vs. Temperature
Fig. 8 Ground Current vs. Temperature
70
60
50
40
30
20
10
0
AIC1722A-18
60
AIC1722A - 25
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
0
1
2
3
6
7
8
VIN4 (V)5
V IN (V)
Fig. 10 Ground Current vs. VIN
Fig. 9 Ground Current vs. VIN
70
70
60
50
40
30
20
10
AIC1722A-33
AIC1722A-52
60
50
40
30
20
10
0
0
0
0
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
V
(V)
IN
V IN (V)
Fig.12 Ground Current vs. VIN
Fig. 11 Ground Current vs. V
IN
6
AIC1722A
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
500
1000
AIC1722A-25
AIC1722A-18
T=80 C
900
800
700
600
500
400
400
300
200
100
0
T=50 C
T=20°C
T=-40°C
T=20 C
T=-40 C
T=80 C
°
T=50°C
0
50
100
150
200
250
300
0
50
100
150
200
250
300
I LOAD (mA)
Fig. 14 VDROP vs. ILOAD
ILOAD (mA)
Fig. 13 VDROP vs. ILOAD
360
300
AIC1722A-52
AIC1722A-33
T=50C
300
240
180
120
60
250
200
150
100
50
T=50C
T=80C
T=80C
T=20C
T=-40C
T=20C
T=-40C
0
0
0
50
100
150
200
250
300
0
60
120
180
240
300
I LOAD (mA)
I
(mA)
LOAD
Fig. 16 VDROP vs. ILOAD
Fig. 15 V
vs. I
LOAD
DROP
540
530
520
510
500
490
480
470
460
AIC1722A
V IN=7V
V IN=6V
V IN=5V
V IN=4V
20
-40
-20
0
40
60
80
Temperature (C)
Fig. 17 Current Limit vs. Temperature
7
AIC1722A
BLOCK DIAGRAM
VIN
VOUT
CURRENT
LIMITING
ERROR
AMP
THERMAL
SHUTDOWN
-
+
+
1.235V
Reference
-
GND
PIN DESCRIPTIONS
VOUT PIN - Output pin.
GND PIN - Power GND.
VIN PIN - Power Supply Input.
8
AIC1722A
APPLICATION INFORMATION
conductivity is used, the junction temperature
will be low even when large power dissipation
applies.
INPUT-OUTPUT CAPACITORS
Linear regulators require input and output
capacitors to maintain stability. Input capacitor at
1F with 1uF aluminum electrolytic output
capacitor is recommended.
The power dissipation across the device is
P = IOUT (VIN-VOUT).
POWER DISSIPATION
The maximum power dissipation is:
The AIC1722A obtains thermal-limiting circuitry,
which is designed to protect the device against
overload condition. For continuous load
(TJ-max - TA )
PMAX
RθJA
Where TJ-max is the maximum allowable junction
temperature (125C), and TA is the ambient
temperature suitable in application.
condition,
maximum
rating
of
junction
temperature must not be exceeded. It is
important to pay more attention in thermal
resistance. It includes junction to case, junction
to ambient. The maximum power dissipation of
AIC1722A depends on the thermal resistance of
its case and circuit board, the temperature
difference between the die junction and ambient
air, and the rate of airflow. The rate of
temperature rise is greatly affected by the
mounting pad configuration on the PCB, the
board material, and the ambient temperature.
When the IC mounting with good thermal
As a general rule, the lower temperature is, the
better reliability of the device is. So the PCB
mounting pad should provide maximum thermal
conductivity to maintain low device temperature.
GND pin performs a dual function for providing
an electrical connection to ground and
channeling heat away. Therefore, connecting
the GND pin to ground with a large pad or
ground plane would increase the power
dissipation and reduce the device temperature.
9
AIC1722A
PHYSICAL DIMENSIONS (unit: mm)
SOT-23
D
e
A
A
e1
SEE VIEW B
b
WITH PLATING
BASE METAL
SECTION A-A
GAUGE PLANE
SEATING PLANE
S
Y
M
B
O
L
SOT-23
L
MILLIMETERS
MIN.
0.95
MAX.
1.45
L1
VIEW B
A
A1
A2
b
0.00
0.90
0.30
0.08
0.15
1.30
0.50
0.22
c
Note: 1. Refer to JEDEC MO-178.
2. Dimension "D" does not include mold flash, protrusions
or gate burrs. Mold flash, protrusion or gate burrs shall not
exceed 10 mil per side.
3. Dimension "E1" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch
dimensions are not necessarily exact.
D
E
2.80
2.60
3.00
3.00
E1
e
1.50
1.70
0.95 BSC
1.90 BSC
e1
L
0.30
0°
0.60
8°
L1
θ
0.60 REF
10
AIC1722A
SOT-89
D
A
C
D1
e
S
Y
M
B
O
L
SOT-89
e1
MILLIMETERS
MIN.
1.40
MAX.
1.60
A
B
0.44
0.36
0.35
4.40
0.56
0.48
0.44
4.60
B1
C
D
D1
E
1.50
2.29
1.83
2.60
B1
B
e
1.50 BSC
3.00 BSC
e1
H
3.94
0.89
4.25
1.20
L
Note: 1. Refer to JEDEC TO-243AA.
2. Dimension "D" does not include mold flash, protrusions
or gate burrs. Mold flash, protrusion or gate burrs shall not
exceed 6 mil per side.
3. Dimension "E" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch
dimensions are not necessarily exact.
11
AIC1722A
TO-92 (Straight lead option available in Bag packing type only)
D
b
S
Y
M
B
O
L
TO-92
j
MILLIMETERS
MIN.
4.32
MAX.
5.33
A
b
0.36
4.45
3.18
2.42
0.47
5.20
4.19
2.66
D
E
e
e1
j
1.15
3.43
1.39
L
12.70
2.03
2.66
S
Note: 1. Refer to JEDEC TO-226.
2. Dimension "D" does not include mold flash, protrusions
or gate burrs. Mold flash, protrusion or gate burrs shall not
exceed 6 mil per side .
3. Dimension "A" does not include inter-lead flash or protrusions.
4. Controlling dimension is millimeter, converted inch
dimensions are not necessarily exact.
e1
e
12
AIC1722A
TO-92 (Formed lead option available in Reel packing)
P1
P
e
T
φD
S Y M B O L
S P E C .
W
A
B
E
F
1 9 .0 ± 0 .5
T
1 8 .0 ± 0 .2
P
9 .0 ± 0 .2
P 1
6 .0 ± 0 .2 0
D
1 6 .0 ± 0 .5
e
S Y M B O L
S P E C .
1 2 .7 B S C
1 2 .7 B S C
4 .0 ± 0 .2
2 .5 B S C
0 .6 ± 0 .1
Note:
Information provided by AIC is believed to be accurate and reliable. However, we cannot assume responsibility for use of any circuitry
other than circuitry entirely embodied in an AIC product; nor for any infringement of patents or other rights of third parties that may
result from its use. We reserve the right to change the circuitry and specifications without notice.
Life Support Policy: AIC does not authorize any AIC product for use in life support devices and/or systems. Life support devices or
systems are devices or systems which, (I) are intended for surgical implant into the body or (ii) support or sustain life, and whose
failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to
result in a significant injury to the user.
13
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