AIC1720
100mA Low Dropout Linear Regulator
Analog Integrations Corporation
4F, 9 Industry E. 9th Rd, Science-Based Industrial Park, Hsinchu, Taiwan
DS-1720-01 012102
TEL: 886-3-5772500
FAX: 886-3-5772510
www.analog.com.tw
1
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FEATURES
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Low Dropout Voltage of 130mV at 30mA
Output Current (5V Output Version).
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Guaranteed 100mA Output Current.
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Internal P-MOSFET Draws no Base Current.
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Low Ground Current.
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Output Voltage of 3.0V/ 3.3V/ 3.6V/ 4.4V/ 5.0V
Available.
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Input Voltage Range up to 14V.
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Needs only 1
F for Stability.
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APPLICATIONS
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Audio/Video System
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Wireless Communication Systems.
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Battery Powered Systems.
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Toys.
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DESCRIPTION
The AIC1720 is a 3-pin low dropout linear
regulator. The superior characteristics of the
AIC1720 include zero base current loss, and
low dropout voltage. Typical ground current
remains approximately 55
A, from no load to
maximum loading conditions. Dropout voltage
at 30mA output current is low: 130mV for the
AIC1720-44 and AIC1720-50, 180mV for the
AIC1720-30, AIC1720-33, and AIC1720-36.
The AIC1720 comes in the popular 3-pin
SOT-89, TO-92 and SO8 packages.
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TYPICAL APPLICATION CIRCUIT
+
+
AIC1720
10
F
C
OUT
V
OUT
VOUT
GND
VIN
1
F
C
IN
V
IN
Low Dropout Linear Regulator
AIC1720
2
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ORDERING INFORMATION
PACKING TYPE
TR: TAPE & REEL
TB: TUBE
BG: BAG (for SOT-89 & TO-92)
PACKAGE TYPE
S: SMALL OUTLINE
X: SOT-89
ZT: TO-92
ZL: TO-92
OUTPUT VOLTAGE
30: 3.0V
33: 3.3V
36: 3.6V
44: 4.4V
50: 5.0V
AIC1720-XXCXX XX
Example: AIC1720-30CSTR
3.0V Version, in SO-8 Package &
Tape & Reel Packing Type
SOT-89
TOP VIEW
1. GND
2. VIN
3. VOUT
1
2
3
1
2
3
1
2
3
GND
1
3
4
2
8
6
5
7
VIN
GND
GND
NC
GND
NC
VOUT
SO-8 TOP VIEW
PIN CONFIGURATION
TO-92 (CZT)
TOP VIEW
1. GND
2. VIN
3.
VOUT
TO-92 (CZL)
TOP VIEW
1. VIN
2. GND
3.
VOUT
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ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage...................................................... ... ... ... ..... ... .................... -0.3~14V
Operating Junction Temperature Range ........ ... ... ........... ... ... ... ................ -40
C~ 125
C
Storage Temperature Range ....................... ... ......................... ... ... .............. -65
C~150
C
Power Dissipation
SOT-89 Package ..... ... ... ... ... ... ... ... ... ... ..... ..... .... ........... 0. 5W
TO-92 Package ........ ... ... ... ... ... ... ... ... ... ... .... ... .... ............ 0.5W
SO8 Package ........ ... ... ... ... ... ... ... ... ..... ... ..... ..... .......... 0.625W
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TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT
AIC1720
3
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ELECTRICAL CHARACTERISTICS
(T
J
=25
C, C
IN
=1
F, C
OUT
=10
F, unless
otherwise specified.)
PARAMETER
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
Output Voltage
No Load
AIC1720-50
AIC1720-44
AIC1720-36
AIC1720-33
AIC1720-30
V
IN
=5.5~14V
V
IN
=5.5~14V
V
IN
=4.0~14V
V
IN
=4.0~14V
V
IN
=3.6~14V
4.800
4.225
3.455
3.170
2.880
5.0
4.4
3.6
3.3
3.0
5.200
4.575
3.745
3.430
3.120
V
Output Voltage
Temperature
Coefficience
(Note 1)
100
150
PPM/
C
Line Regulation
I
L
=1mA
AIC1720-50
AIC1720-44
AIC1720-36
AIC1720-33
AIC1720-30
V
IN
=5.5~14V
V
IN
=5.5~14V
V
IN
=4.0~14V
V
IN
=4.0~14V
V
IN
=3.6~14V
5
5
5
5
5
10
10
10
10
10
mV
Load Regulation
(Note 2)
AIC1720-50
AIC1720-44
AIC1720-36
AIC1720-33
AIC1720-30
V
IN
=7V, I
OUT
=0.1~100mA
V
IN
=7V, I
OUT
=0.1~100mA
V
IN
=5V, I
OUT
=0.1~100mA
V
IN
=5V, I
OUT
=0.1~100mA
V
IN
=5V, I
OUT
=0.1~100mA
10
10
10
10
10
25
25
25
25
25
mV
Dropout Voltage
(Note 4)
AIC1720-50
AIC1720-44
AIC1720-36
AIC1720-33
AIC1720-30
I
OUT
=100mA
I
OUT
=100mA
I
OUT
=100mA
I
OUT
=100mA
I
OUT
=100mA
400
400
540
540
540
500
500
640
640
640
mV
Ground Current
I
O
=0.1mA~I
MAX
AIC1720-50
AIC1720-44
AIC1720-36
AIC1720-33
AIC1720-30
V
IN
=5.5~14V
V
IN
=5.5~14V
V
IN
=4~14V
V
IN
=4~14V
V
IN
=4~14V
55
55
55
55
55
80
80
80
80
80
A
Note 1:
Guaranteed by design.
Note 2:
Regulation is measured at constant junction temperature, using pulse testing with a low ON time.
Note 3:
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.
AIC1720
4
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ELECTRICAL CHARACTERISTICS
Fig. 1 Dropout Voltage vs. Load Current
Dropout Voltage (mV)
Load Current (mA)
0
20
40
60
80
100
0
100
200
300
400
500
600
700
V
OUT
=5.0V
V
OUT
=4.4V
V
OUT
=3.6V
V
OUT
=3.0V
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BLOCK DIAGRAM
V
REF
1.235V
GND
VOUT
VIN
ERROR
AMP
+
-
Thermal
Limiting
-
+
Current
Limiting
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PIN DESCRIPTIONS
VOUT PIN - Output pin.
GND PIN - Power GND.
VIN PIN
- Power Supply Input.
AIC1720
5
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APPLICATION INFORMATIONS
A 1
F (or greater) capacitor is required between
the AIC1720 output and ground for stability.
Without this capacitor the part will oscillate. Even
though most types of capacitor may work, the
equivalent series resistance (ESR) should be held
to 5
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.
A 0.1
F capacitor (or greater) should be placed
from the AIC1720 input to ground if the lead
inductance between the input and power source
exceeds 500nH (approximately 10 inches of trace).
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PHYSICAL DIMENSIONS
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SOT-89 (unit: mm)
SYMBOL
MIN
MAX
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
e
1.50 (TYP.)
e1
3.00 (TYP.)
H
3.94
4.25
B
e
H
e1
D
D1
A
C
L
E
L
0.89
1.20
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SOT-89 MARKING
Part No.
Marking
AIC1720-30CX
AS30
AIC1720-33CX
AS33
AIC1720-36CX
AS36
AIC1720-44CX
AS44
AIC1720-50CX
AS50
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