AIC1723A
500mA Low Dropout Linear Regulator
FEATURES
Analog Integrations Corporation
Si-Soft Research Center
DS-1723AP-02 082304
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
Low Dropout Voltage of 650mV at 500mA
Output Current (3V Output Version).
Guaranteed 500mA Output Current.
Maximum Input Voltage is 8V
Low Ground Current at 65
A.
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.
Only needs 4.7
F Output Capacitor for Stability.
Current and Thermal Limiting.
APPLICATIONS
CD-ROM Drivers.
LAN Cards.
Microprocessor.
RAM Module.
Wireless Communication Systems.
Battery Powered Systems.
DESCRIPTION
The AIC1723A is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1723A include zero base current loss,
very low dropout voltage, and 2% accuracy
output voltage. Typical ground current
remains approximately 65
A, for loading
ranging from zero to maximum. Dropout
voltage turns substantially low when output
current is 500mA. Built-in output current
limiting and thermal limiting provide maximal
protection to the AIC1723A against fault
conditions.
The AIC1723A is available with popular SOT-
23, SOT-223, SOT-89 and TO-252 packages.
TYPICAL APPLICATION CIRCUIT
+
+
AIC1723A
4.7
F
C
OUT
V
OUT
V
OUT
GND
V
IN
1
F
C
IN
V
IN
Low Dropout Linear Regulator
(C
IN
and C
OUT
are electrolytic capacitor)
AIC1723A
ORDERING INFORMATION
Example: AIC1723A-18CETR
1.8V Version, in TO-252 Package & Tape & Reel
Packing Type
AIC1723A-18PYTR
1.8V Version, in SOT-223 Lead Free Package & Tape
& Reel Packing Type
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
PACKAGE TYPE
E: TO-252
U: SOT-23
X: SOT-89
Y: SOT-223
C: Commercial
P: Lead Free Commercial
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
AIC1723A-XXXX XX
PIN CONFIGURATION
TO-252 (CE & PE)
TOP VIEW
1: VOUT
2. GND
3. VIN
2
3
1
SOT-89 (CX & PX)
TOP VIEW
1: GND
2. VIN
3. VOUT
1
2
3
SOT-23 (CU & PU)
TOP VIEW
1: GND
2: VOUT
3: VIN
3
1
2
SOT-223 (CY & PY)
TOP VIEW
1: VOUT
2. GND
3. VIN
1
2
3
SOT-23 MARKING
Part No.
CU
PU
Part No.
CU
PU
AIC1723A-18XU BT18
BT18P
AIC1723A-35XU BT35
BT35P
AIC1723A-20XU BT20
BT20P
AIC1723A-37XU BT37
BT37P
AIC1723A-25XU BT25
BT25P
AIC1723A-38XU BT38
BT38P
AIC1723A-27XU BT27
BT27P
AIC1723A-50XU BT50
BT50P
AIC1723A-30XU BT30
BT30P
AIC1723A-52XU BT52
BT52P
AIC1723A-33XU BT33
BT33P
2
AIC1723A
SOT-89 MARKING
Part No.
CX
PX
Part No.
CX
PX
AIC1723A-18XX AV18
AV18P
AIC1723A-35XX AV35
AV35P
AIC1723A-20XX AV20
AV20P
AIC1723A-37XX AV37
AV37P
AIC1723A-25XX AV25
AV25P
AIC1723A-38XX AV38
AV38P
AIC1723A-27XX AV27
AV27P
AIC1723A-50XX AV50
AV50P
AIC1723A-30XX AV30
AV30P
AIC1723A-52XX AV52
AV52P
AIC1723A-33CY AV33
AV33P
SOT-223 MARKING
Part No.
CY
PY
Part No.
CY
PY
AIC1723A-18XY BU18
BU18P
AIC1723A-35XY BU35
BU35P
AIC1723A-20XY BU20
BU20P
AIC1723A-37XY BU37
BU37P
AIC1723A-25XY BU25
BU25P
AIC1723A-38XY BU38
BU38P
AIC1723A-27XY BU27
BU27P
AIC1723A-50XY BU50
BU50P
AIC1723A-30XY BU30
BU30P
AIC1723A-52XY BU52
BU52P
AIC1723A-33XY BU33
BU33P
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage ......................................................................................... -0.3~8V
Operating Temperature Range ................................................................. -40
C~ 85C
Junction Temperature ................................................................................. 125
C
Storage Temperature Range ...................................................................... -65
C~150C
Lead Temperature (Soldering. 10sec) ............................................................ 260
C
Thermal Resistance Junction to Ambient
SOT-23 Package ..................... 180
C/W
(Assume no Ambient Airflow, no Heatsink) TO-252 Package ..................... 100
C/W
SOT-89
Package
..................... 160
C/W
SOT-223
Package
..................... 155
C/W
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
AIC1723A
ELECTRICAL CHARACTERISTICS
(T
A
=25
C, C
IN
=1
F, C
OUT
=4.7
F, unless
otherwise specified.) (Note 1)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
No
Load
Output Voltage
AIC1723A-52
AIC1723A-50
AIC1723A-38
AIC1723A-37
AIC1723A-35
AIC1723A-33
AIC1723A-30
AIC1723A-27
AIC1723A-25
AIC1723A-20
AIC1723A-18
V
IN
=8V
-2
+2 %
Line Regulation
I
L
=1mA,
1.8V
V
OUT
3.2V
3.3V
V
OUT
5.2V
V
IN
=4V~8V
V
IN
=5.5V~8V
3
3
10
15
mV
Load Regulation
(Note 2)
I
L
=0.1~500mA
1.8V
V
OUT
3.9V
4.0V
V
OUT
5.2V
V
IN
=5V
V
IN
=7V
10
20
30
50
mV
Current Limit
(Note 3)
V
IN
=7V, V
OUT
=0V 500
mA
Dropout Voltage
(Note 4)
I
L
=500mA
4.0V
V
OUT
5.2V
3.0V
V
OUT
3.9V
2.5V
V
OUT
2.9V
2.0V
V
OUT
2.4V
1.8V
V
OUT
1.9V
510
650
780
1100
1400
mV
Ground Current
I
O
=0.1mA~I
MAX
1.8V
V
OUT
3.9V
4.0V
V
OUT
5.2V
V
IN
=5~8V
V
IN
=7~8V
65
65
90
90
A
Note 1:
Specifications are production tested at T
A
=25
C. Specifications over the -40C to 85C operating
temperature range are assured by design, characterization and correlation with Statistical Quality
Controls (SQC).
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.
4
AIC1723A
TYPICAL PERFORMANCE CHARACTERISTICS
0
50
100
150
200
250
300
350
400
450
0
100
200
300
400
500
AIC1723A-52
V
DROP
vs. I
LOAD
V
DROP
(m
V)
I
LOAD
(mA)
T=50
C
T=80
C
T=25
C
T=-40
C
0
100
200
300
400
500
0
100
200
300
400
500
600
AIC1723A-33
V
DROP
vs. I
LOAD
V
DROP
(m
V)
I
LOAD
(mA)
T=50
C
T=80
C
T=25
C
T=-40
C
300
320
340
360
380
400
420
440
V
DROP
vs. Temperature
V
DROP
(m
V)
Temperature (
C)
-40 -30 -20 -10 0 10 20 30 40 50 60 70 80
AIC1723A-52
I
LOAD
=500mA
-40
-20
0
20
40
60
80
400
420
440
460
480
500
520
540
560
V
DROP
vs. Temperature
V
DR
OP
(mV
)
AIC1723A-33
Temperature (
C)
I
LOAD
=500mA
0
1
2
3
4
5
6
7
8
0
10
20
30
40
50
60
Ground Current vs. V
IN
G
r
ound
C
u
rre
nt (
A)
AIC1723A-52
V
IN
(V)
0
1
2
3
4
5
6
7
8
0
10
20
30
40
50
60
70
Ground Current vs. V
IN
G
r
ound C
u
rre
nt (
A)
AIC1723A-33
V
IN
(V)
5
AIC1723A
TYPICAL PERFORMANCE CHARACTERISTICS
(Continued)
-40
-20
0
20
40
60
80
40
45
50
55
60
65
70
75
80
AIC1723A-33
Ground Current vs. Temperature
G
r
ound
C
u
r
r
ent (
A)
Temperature (
C)
I
LOAD
= 500mA
I
LOAD
= 300mA
I
LOAD
= 0mA
I
LOAD
= 100mA
Current Limit vs. Temperature
C
u
rrent L
i
m
i
t
(m
A)
Temperature (
C)
-40
-20
0
20
40
60
80
660
680
700
720
740
760
780
800
820
V
IN
= 7V
AIC1723A
V
IN
= 6V
V
IN
= 5V
V
IN
= 4V
-40
-20
0
20
40
60
80
100
5.00
5.05
5.10
5.15
5.20
5.25
5.30
V
OUT
vs. Temperature
V
OUT
(V
)
Temperature (
C)
AIC1723A-52
-40
-20
0
20
40
60
80
100
3.10
3.15
3.20
3.25
3.30
3.35
3.40
V
OUT
vs. Temperature
V
OUT
(V)
Temperature (
C)
AIC1723A-33
BLOCK DIAGRAM
1.235V
Reference
GND
VOUT
VIN
Error
AMP
+
-
Thermal
Shutdown
-
+
Current
Limiting
6
AIC1723A
PIN DESCRIPTIONS
VOUT PIN - Output pin.
GND PIN - Power GND.
VIN PIN - Power Supply Input.
PHYSICAL DIMENSIONS
(unit: mm)
SOT-23 (CU) (PU)
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
0.60
L1 0.60
REF
E
D
E1
e1
e
A1
A
A2
b
0.25
L1
L
c
0
8
7
AIC1723A
TO-252 (CE) (PE)
SYMBOL MIN MAX
A 2.19
2.38
A1 0.00 0.13
b 0.64
0.89
b3 5.21 5.46
c 0.46
0.61
c2 0.46 0.58
D 5.33
6.22
E 6.35
6.73
e 2.28
BSC
H 9.40
10.41
L 1.40
1.78
L1 2.67
REF
L2 0.51
BSC
L3 0.89 2.03
L4 0.64 1.02
E
b3
A
c2
A1
H
D
L
b
e
L3
L4
L1
c
L2
0
8
SOT-89 (CX) (PX)
SYMBOL MIN
MAX
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
e 1.50
BSC
e1 3.00
BSC
H 3.94 4.25
B1
e
H
e1
D
D1
A
C
L
E
B
L 0.89 1.20
8
AIC1723A
SOT-223 (CY) (PY)
SYMBOL MIN MAX
A -
1.80
A1 0.02 0.10
A2 1.55 1.65
b 0.66
0.84
b2 2.90 3.10
c 0.23
0.33
D 6.30
6.70
E 6.70
7.30
E1 3.30 3.70
e 2.30
BSC
e1 4.60
BSC
L 0.90 -
0
8
A
E1
E
D
b2
b
A1
e
A2
e1
0.25
L
c
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.
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