AIC AIC1722A-25CUBG 300ma low dropout linear regulator Datasheet

AIC1722A
300mA Low Dropout Linear Regulator
FEATURES
DESCRIPTION
Low Dropout Voltage of 470mV at 300mA Output Current (3.0V Output Version).
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 55µA, 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.
Guaranteed 300mA Output Current.
Maximum Input Voltage is 8V
Low Ground Current at 55µA.
2% Accuracy Output Voltage of 1.8V/ 2.0V
/2.5V /2.7V/ 3.0V/ 3.3V/ 3.5V/ 3.7V/ 3.8V/ 5.0V/
5.2V.
Needs only 1µF 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
VIN
VIN
+
1µF
CIN
VOUT
AIC1722A
GND
VOUT
+
1µF
COUT
Low Dropout Linear Regulator
(CIN and COUT are electrolytic capacitor)
Analog Integrations Corporation
Si-Soft Research Center
DS-1722AP-01 070204
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
PACKING TYPE
TR: TAPE & REEL
BG: BAG
PACKAGE TYPE
U: SOT-23
XA: SOT-89
XT: SOT-89
ZT: TO-92
ZL: TO-92
1
C: Commercial
P: Lead Free Commercial
SOT-89 (CXA & PXA)
TOP VIEW
1: GND
2. VIN
3. VOUT
SOT-89 (CXT & PXT)
TOP VIEW
1: VOUT
2. GND
3. VIN
OUTPUT VOLTAGE
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
Example:
3
SOT-23 (CU & PU)
TOP VIEW
1: GND
2: VOUT
3: VIN
TO-92 (CZT & PZT)
TOP VIEW
1: GND
2. VIN
3. VOUT
AIC1722A-18CXATR
1.8V Version, in SOT-89 Package &
Tape & Reel Packing Type
AIC1722A-18PXATR
TO-92 (CZL & PZL)
TOP VIEW
1: VIN
2. GND
3. VOUT
2
1
2
3
1
2
3
1
2
3
1
2
3
1.8V Version, in SOT-89 Lead Free
Package & Tape & Reel Packing Type
SOT-23 MARKING
Part No.
CU
PU
Part No.
CU
PU
AIC1722A-18XU
BN18
BN18P
AIC1722A-35XU
BN35
BN35P
AIC1722A-20XU
BN20
BN20P
AIC1722A-37XU
BN37
BN37P
AIC1722A-25XU
BN25
BN25P
AIC1722A-38XU
BN38
BN38P
AIC1722A-27XU
BN27
BN27P
AIC1722A-50XU
BN50
BN50P
AIC1722A-30XU
BN30
BN30P
AIC1722A-52XU
BN52
BN52P
AIC1722A-33XU
BN33
BN33P
2
AIC1722A
SOT-89 MARKING
Part No.
CXA
PXA
Part No.
CXT
PXT
AIC1722A-18XXA
AL18
AL18P
AIC1722A-18XXT
BA18
BA18P
AIC1722A-20XXA
AL20
AL20P
AIC1722A-20XXT
BA20
BA20P
AIC1722A-25XXA
AL25
AL25P
AIC1722A-25XXT
BA25
BA25P
AIC1722A-27XXA
AL27
AL27P
AIC1722A-27XXT
BA27
BA27P
AIC1722A-30XXA
AL30
AL30P
AIC1722A-30XXT
BA30
BA30P
AIC1722A-33XXA
AL33
AL33P
AIC1722A-33XXT
BA33
BA33P
AIC1722A-35XXA
AL35
AL35P
AIC1722A-35XXT
BA35
BA35P
AIC1722A-37XXA
AL37
AL37P
AIC1722A-37XXT
BA37
BA37P
AIC1722A-38XXA
AL38
AL38P
AIC1722A-38XXT
BA38
BA38P
AIC1722A-50XXA
AL50
AL50P
AIC1722A-50XXT
BA50
BA50P
AIC1722A-52XXA
AL52
AL52P
AIC1722A-52XXT
BA52
BA52P
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ...................................................…………..…….................. -0.3~8V
Operating Temperature Range …………….....………........…………................ -40°C~ 85°C
Junction Temperature ……………………………………………………………………... 125°C
Storage Temperature Range ....................……......................………............. -65°C~150°C
Lead Temperature (Soldering. 10sec) …………………………………………………… 260°C
Power Dissipation
SOT-89 Package ....…...…................. 0.5W
TO-92 Package .....…………............. 0.5W
SOT-23 Package.....…………............. 0.5W
Absolute Maximum Rating are those value beyond which the life of a device may be impaired.
TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT
3
AIC1722A
ELECTRICAL CHARACTERISTICS
(TA=25°C, CIN=1µF, COUT=1µF, unless oth-
erwise specified.) (Note 1)
PARAMETER
Output Voltage
Line Regulation
Load Regulation
(Note 2)
Current Limit
(Note 3)
TEST CONDITIONS
No Load
AIC1722A-52
AIC1722A-50
AIC1722A-38
AIC1722A-37
AIC1722A-35
AIC1722A-33
AIC1722A-30
AIC1722A-27
AIC1722A-25
AIC1722A-20
AIC1722A-18
IL=1mA,
1.4V≤VOUT≤3.2V
3.3V≤VOUT≤5.2V
IL=0.1~300mA
1.4V≤VOUT≤3.9V
4.0V≤VOUT≤5.2V
IL=300mA
Ground Current
IO=0.1mA~IMAX
1.4V≤VOUT≤3.9V
4.0V≤VOUT≤5.2V
Note 2:
Note 3:
Note 4:
TYP.
-2
MAX.
UNIT
+2
%
VIN=4V~8V
VIN=5.5V~8V
3
3
10
15
mV
VIN=5V
VIN=7V
7
15
20
40
mV
VIN=7V, VOUT=0V
Dropout Voltage
(Note 4)
Note 1:
VIN=8V
MIN.
300
4.0V≤VOUT≤5.2V
3.0V≤VOUT≤3.9V
2.5V≤VOUT≤2.9V
2.0V≤VOUT≤2.4V
1.4V≤VOUT≤1.9V
VIN=5~8V
VIN=7~8V
mA
400
470
570
800
1260
55
55
mV
80
80
µA
Specifications are production tested at TA =25°C. Specifications over the -40°C to 85°C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
Regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Current limit is measured by pulsing a short time.
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
5.30
2.52
AIC1722A-52
AIC1722A-25
2.51
V OUT (V)
V OUT (V)
5.25
2.50
2.49
2.48
5.20
5.15
2.47
2.46
-40
-20
0
20
40
60
80
5.10
-40
100
-20
0
20
VOUT vs. Temperature
60
Ground Current (uA)
Ground Current (uA)
65
ILOAD=100mA
60
ILOAD=0mA
55
ILOAD=300mA
-20
0
20
40
60
ILOAD=0mA
56
ILOAD=100mA
54
52
50
ILOAD=300mA
48
46
-40
80
100
AIC1722A-52
58
-40
80
VOUT vs. Temperature
AIC1722A-25
45
60
Temperature (°C)
70
50
40
Temperature (°C)
-20
0
Temperature (°C)
20
40
60
80
Temperature (°C)
Ground Current vs. Temperature
Ground Current vs. Temperature
70
AIC1722A-52
60 AIC1722A - 25
Ground Current (uA)
Ground Current (uA)
60
50
40
30
20
10
50
40
30
20
10
0
0
1
2
3
4
5
6
7
8
0
0
1
2
3
4
5
V IN (V)
V IN (V)
Ground Current vs. VIN
Ground Current vs. VIN
6
7
8
5
AIC1722A
TYPICAL PERFORMANCE CHARACTERISTICS
500
300
AIC1722A-25
V DROP (mV)
V DROP (mV)
250
T=50°C
300
T=20°C
200
T=-40°C
100
0
T=50°C
200
T=80°C
150
100
T=20°C
50
T=-40°C
0
0
540
50
100
150
200
250
300
0
50
100
150
200
I LOAD (mA)
I LOAD (mA)
VDROP vs. ILOAD
VDROP vs. ILOAD
250
300
AIC1722A
530
Currnet Limit (mA)
AIC1722A-52
T=80°C
400
(Continued)
V IN=7V
520
510
V IN=6V
500
490
480
V IN=5V
470
V IN=4V
460
-40
-20
0
20
40
60
80
Temperature (°C)
Current Limit vs. Temperature
6
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.
7
AIC1722A
PHYSICAL DIMENSIONS
(unit: mm)
SOT-23 (CU) (PU)
D
0.25
E1
E
c
L
e
θ
L1
e1
A2
A
A1
b
SYMBOL
MIN
MAX
A
0.95
1.45
A1
0.05
0.15
A2
0.90
1.30
b
0.30
0.50
c
0.08
0.22
D
2.80
3.00
E
2.60
3.00
E1
1.50
1.70
e
0.95 BSC
e1
1.90 BSC
L
0.30
L1
0.60
0.60 REF
θ
0˚
8˚
SOT-89 (CXX) (PXX)
D
A
SYMBOL
MIN
MAX
C
A
1.40
1.60
B
0.44
0.56
B1
0.36
0.48
C
0.35
0.44
D
4.40
4.60
D1
1.50
1.83
E
2.29
2.60
D1
H
E
L
B
e
e1
B1
e
1.50 BSC
e1
3.00 BSC
H
3.94
4.25
L
0.89
1.20
8
AIC1722A
TO-92 (CZ)(PZ)
A
D
b
S
E
L
SYMBOL
MIN
MAX
A
4.32
5.33
b
0.36
0.47
D
4.45
5.20
E
3.18
4.19
e
2.42
2.66
e1
1.15
1.39
j
3.43
-
L
12.70
-
S
2.03
2.66
j
e1
e
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.
9
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