AIC AIC1721D

AIC1721/1721D
3-pin Low Dropout Linear Regulator
FEATURES
Low Dropout Voltage of 130mV at 100mA Output
Current (5V Output Version).
Guaranteed 150mA/300mA Output Current.
Internal 1.3Ω P-MOSFET Draws no Base Current.
Low Ground Current at 55µA.
1% Accuracy Output Voltage of 3.3V/5V.
Input Voltage Range up to 12V (5V Output
Fast Transient Response.
Needs only 1µF for Stability.
Current and Thermal Limiting.
of
the
LP2950.
The
superior
characteristics of the AIC1721/1721D include
zero base current loss, very low dropout voltage,
and 1% accuracy output voltage. Typica-l ground
Version).
Extremely Tight Load and Line Regulation.
The AIC1721/1721D is the enhanced CMOS
version
DESCRIPTION
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
AIC1721-5/1721D-5,
and
180mV
for
the
AIC1721/ 1721D. Output current limiting and
thermal limiting are built in to provide maximal
protection to the AIC1721/ 1721D against fault
APPLICATIONS
conditions.
Voltage Regulator for LAN Cards.
Wireless Communication Systems.
Battery Powered Systems.
While pin-to-pin compatible with the LP2950 and
the industry industry standard 78XX series of
voltage regulators, the AIC1721/1721D comes in
the popular3-pin SOT-89 or TO-92 packages.
TYPICAL APPLICATION CIRCUIT
VIN
VIN
AIC1721/
AIC1721D
VOUT
VOUT
GND
+
1µF
CIN
+ 10µF
COUT
Negative Voltage Regulator
Analog Integrations Corporation
4F, 9, Industry E. 9th Rd, Science Based Industrial Park, Hsinchu Taiwan, ROC
DS-1721-01
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
AIC1721
ORDERING INFORMATION
AIC1721X-XXX
ORDER NUMBER
PACKAGING TYPE
X: SOT-89
Z: TO-92
TEMPERATURE RANGE
C: 0°C~+70°C
AIC1721CX
AIC1721-5CX
AIC1721DCX
AIC1721D-5CX
(SOT-89)
PIN CONFIGURATION
FRONT VIEW
1: VOUT
2: GND
3: VIN
1
OUTPUT VOLTAGE
DEFAULT: 3.3V
5: 5.0V
AIC1721CZ
AIC1721-5CZ
AIC1721DCZ
AIC1721D-5CZ
(TO-92)
OUTPUT CURRENT
DEFAULT: 150mA
D: 300mA
TOP VIEW
1: VOUT
2: GND
3: VIN
2
3
1
2
3
ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage .................................…………......……................................ -0.3~12V
Operating Junction Temperature Range ..............….....……..….….............. -40°C~ 125°C
Storage Temperature Range
Power Dissipation
..............................….………........................ -65°C~150°C
SOT-89 Package ..….…….…........... 0. 80W
TO-92 Package .......…….…............ 0.78W
TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT
2
AIC1721
ELECTRICAL CHARACTERISTICS
otherwise specified.)
PARAMETER
Output Voltage
Output Voltage
Temperature
Coefficiency
Line Regulation
Load Regulation
(Note 2)
Current Limit
(Note 3)
Dropout Voltage
(Note 4)
Ground Current
Note 1:
Note 2:
Note 3:
Note 4:
(Ta=25°°C, CIN=1µ
µF, COUT=10µ
µF, unless
TEST CONDITIONS
No Load
AIC1721/1721D-5
AIC1721/1721D
MIN.
TYP.
MAX.
4.950
3.267
5.0
3.3
50
5.050
3.333
150
3
3
7
7
7
7
440
440
440
440
0.2
200
270
400
540
10
10
15
25
15
25
V
VIN=5.5~12V
VIN=3.6~12V
(Note 1)
IL=1mA
AIC1721/1721D-5
AIC1721/1721D
AIC1721-5
AIC1721D-5
AIC1721
AIC1721D
AIC1721-5
AIC1721
AIC1721D-5
AIC1721D
AIC1721/1721D
AIC1721-5
AIC1721
AIC1721D-5
AIC1721D
IO=0.1mA~IMAX
AIC1721/1721D-5
AIC1721/1721D
UNIT
PPM/°C
mV
VIN=5.5~12V
VIN=3.6~12V
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=300mA
IL=300mA
320
320
320
320
mV
mA
10
300
370
500
640
mV
µA
VIN=5.5~12V
VIN=4~12V
55
55
80
80
Guaranteed by design.
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.
3
AIC1721
BLOCK DIAGRAM
GND
+
VREF
+
-
-
VOUT
VIN
TYPICAL PERFORMANCE CHARACTERISTICS
Ground Current vs. Input Voltage
Output Voltage vs. Temperature
60
Normalized Output Voltage (%)
102
50
Ground Current (µA)
101
100
99
40
30
20
10
98
-40
0
0
100
50
Temperature (°C)
0
125
0
2
6
10
8
12
Dropout Voltage vs Load Current
Ground Current vs. Temperature
600
500
Dropout Voltage (mV)
58
IL=300mA
56
IL=150mA
54
IL=0.1mA
52
50
4
Input Voltage (V)
60
Ground Current (µA)
VOUT=3.3V
400
300
VOUT=5V
200
100
0
-50
-25
0
25
50
Temperature(°C)
75
100
125
0
50
100
150
200
250
300
Load Current (mA)
4
AIC1721
TYPICAL PERFORMANCE CHARACTERISTICS
500
600
VOUT=5V
IL=300mA
Short Circuit Current (mA)
Dropout Voltage(mV)
500
400
IL=150mA
300
(Continued)
Short Circuit Current vs. Temperature
Dropout Voltage vs Temperature
200
100
AIC1721D
400
300
AIC1721
IL=0.1mA
0
-50
-25
0
25
50
75
100
200
-50
125
-25
0
Temperature(°C)
Line Transient Response
Output Voltage (mV)
0
COUT=1µF
IL=1mA
VOUT=5V
Load Current (mA)
Output Voltage
(mV, AC)
Input Voltage
(V)
50
-50
8
6
0
0.1
0.2
0.3
0.4
0.5
0.6
25
50
Temperature (°C)
75
100
125
Load Transient Response
100
0.7
0.8
0.9
1.0
Time (mS)
100
0
-100
COUT=1µF
-200
VOUT=5V
150
0.1
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Time (mS)
Output Voltage
(mV, AC)
Load Transient Response
COUT=10µF
VOUT=5V
20
0
-20
-40
-60
Load Current
(mA)
150
0.1
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Time (mS)
5
AIC1721
PHYSICAL DIMENSIONS
SOT-89 (unit: mm)
D
A
SYMBOL
MIN
MAX
C
A
1.40
1.60
B
0.36
0.48
C
0.35
0.44
D
4.40
4.60
D1
1.62
1.83
E
2.29
2.60
D1
H
E
L
B
e
e1
e
1.50 (TYP.)
e1
3.00 (TYP.)
H
3.94
4.25
L
0.89
1.20
SYMBOL
MIN
MAX
A
4.32
5.33
SOT89 Marking
Part No.
AIC1714-30
AIC1714-33
AIC1714-50
Marking
AP30
AP33
AP50
TO-92 (unit: mm)
A
E
L
C
C
e1
D
0.38 (TYP.)
D
4.40
5.20
E
3.17
4.20
e1
L
1.27 (TYP.)
12.7
-
6