AIC1731-13CX5 [AIC]
300mA, Low Dropout Linear Regulator with Shutdown;
| 型号： | AIC1731-13CX5 |
| 厂家： | 
ANALOG INTERGRATIONS CORPORATION |
| 描述： | 300mA, Low Dropout Linear Regulator with Shutdown |
| 文件： | 总12页 (文件大小：306K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
AIC1731
300mA, Low Dropout Linear Regulator
with Shutdown
FEATURES
DESCRIPTION
z Active Low Shutdown Control.
AIC1731 is a 300mA low noise, low dropout
z Very Low Quiescent Current.
linear regulator, and is housed in small SOT-23-5
z Very Low Dropout Voltage of 470mV at 300mA
Output Current (3.0V Output Version)
z 1.3V, 1.5V, 1.8V, 2.5V, 2.8V, 3.0V, 3.3V Output
Voltage.
and SOT-89-5 package. The device is in the “ON”
state when the SHDN pin is set to logic high
level. An internal P-MOSFET pass transistor is
used to achieve 470mV low dropout voltage at
300mA load current. It offers high precision
z Short Circuit and Thermal Protection.
z ±2% Output Tolerance.
z Miniature Package: SOT-23-5 and SOT-89-5
output voltage of ±2%. The quality of low
quiescent current and low dropout voltage makes
this device ideal for battery power applications.
The internal reverse bias protection eliminates
the requirement for a reverse voltage protection
diode. The high ripple rejection and low noise of
AIC1731 provide enhanced performance for
critical applications. The noise bypass pin can be
connected an external capacitor to reduce the
output noise level.
APPLICATIONS
z PDA
z DSC
z Notebook
z Pagers
z Personal Communication Equipment
z Cordless Telephones
z Portable Instrumentation
z Portable Consumer Equipment
z Battery Powered Systems
TYPICAL APPLICATION CIRCUIT
VIN
VIN
VOUT
V
OUT
+
C
IN
+
C
1 F
μ
OUT
1 F
μ
GND
(Note1)
BP
SHDN
C
BP
SHDN
0.1 F
μ
AIC1731
Low Noise Low Dropout Linear Regulator
Analog Integrations Corporation
Si-Soft Research Center
3A1, No.1, Li-Hsin Rd. I , Science Park , Hsinchu 300, Taiwan , R.O.C.
DS-1731G-02 20090928
TEL: 886-3-5772500 FAX: 886-3-5772510 www.analog.com.tw
1
AIC1731
ORDERING INFORMATION
AIC1731-XXXXXX
PIN CONFIGURATION
SOT-23-5
TOP VIEW
1: VIN
PACKING TYPE
TR: TAPE & REEL
BG: BAG
5
4
3
2: GND
3: SHDN
4: BP
PACKAGE TYPE
V: SOT-23-5
X5: SOT-89-5
1
2
5: VOUT
P: LEAD FREE COMMERCIAL
G: GREEN PACKAGE
SOT-89-5
TOP VIEW
1: VIN
2: GND
3: SHDN
4: BP
5
4
OUTPUT VOLTAGE
13: 1.3V
15: 1.5V
18: 1.8V
25: 2.5V
28: 2.8V
5: VOUT
30: 3.0V
2
3
1
33: 3.3V
(Of a unit of 0.1V within the voltage range from 1.3V to 3.3V, additional
voltage versions for this product line may be available on demand with
prior consultation with AIC.)
Example: AIC1731-18PX5TR
Æ 1.8V Version, in SOT-89-5 Lead Free Package & Tape &
Reel Packing Type
AIC1731-18PVTR
Æ 1.8V Version, in SOT-23-5 Lead Free Package & Tape &
Reel Packing Type
•
SOT-89-5 Marking
Part No. Marking
Part No.
Marking
EH13P
EH15P
EH18P
EH25P
EH28P
EH30P
EH33P
Part No.
Marking
EH13G
EH15G
EH18G
EH25G
EH28G
EH30G
EH33G
AIC1731-13CX5
AIC1731-15CX5
AIC1731-18CX5
AIC1731-25CX5
AIC1731-28CX5
AIC1731-30CX5
AIC1731-33CX5
EH13
EH15
EH18
EH25
EH28
EH30
EH33
AIC1731-13PX5
AIC1731-15PX5
AIC1731-18PX5
AIC1731-25PX5
AIC1731-28PX5
AIC1731-30PX5
AIC1731-33PX5
AIC1731-13GX5
AIC1731-15GX5
AIC1731-18GX5
AIC1731-25GX5
AIC1731-28GX5
AIC1731-30GX5
AIC1731-33GX5
•
SOT-23-5 Marking
Part No.
Marking
Part No.
Marking
ED13P
ED15P
ED18P
ED25P
ED28P
ED30P
ED33P
Part No.
Marking
ED13G
ED15G
ED18G
ED25G
ED28G
ED30G
ED33G
AIC1731-13CV
AIC1731-15CV
AIC1731-18CV
AIC1731-25CV
AIC1731-28CV
AIC1731-30CV
AIC1731-33CV
ED13
ED15
ED18
ED25
ED28
ED30
ED33
AIC1731-13PV
AIC1731-15PV
AIC1731-18PV
AIC1731-25PV
AIC1731-28PV
AIC1731-30PV
AIC1731-33PV
AIC1731-13GV
AIC1731-15GV
AIC1731-18GV
AIC1731-25GV
AIC1731-28GV
AIC1731-30GV
AIC1731-33GV
2
AIC1731
ABSOLUTE MAXIMUM RATINGS
Supply Voltage
12V
8V
Shutdown Terminal Voltage
Noise Bypass Terminal Voltage
Operating Temperature Range
Maximum Junction Temperature
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
5V
-40ºC~85ºC
125°C
-65ºC~150ºC
260°C
Thermal Resistance Junction to Case, RθJC
SOT-23-5
SOT-89-5
130°C /W
30°C /W
220°C /W
160°C /W
Thermal Resistance Junction to Ambient, RθJA SOT-23-5
SOT-89-5
(Assume no ambient airflow, no heatsink)
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
TEST CIRCUIT
Refer to TYPICAL APPLICATION CIRCUIT
3
AIC1731
ELECTRICAL CHARACTERISTICS
(CIN=1μF, COUT=4.7μF, TJ=25°C, unless otherwise specified) (Note2)
PARAMETER
Quiescent Current
TEST CONDITIONS
IOUT = 0mA, VIN = 3.6~7V
VIN = 3.6~7V, output OFF
IOUT = 0.1~300mA
SYMBOL MIN. TYP. MAX. UNIT
IQ
35
50
0.1
50
μA
μA
μA
mA
Standby Current
ISTBY
IGND
IOUT
GND Pin Current
30
Continuous Output Current
VIN = 5V
300
Output Current Limit
Output Voltage Tolerance
Temperature Coefficient
Line Regulation
VIN = 5V, VOUT = 0V
VIN = 5V, no load
IIL
300
-2
450
mA
%
VOUT
TC
2
50
3
150 ppm/ºC
VIN = VOUT(TYP) + 1V to 7V
ΔVLIR
10
mV
VIN = VOUT + 1.2V (Vout≥ 2.0V)
VIN = VOUT + 1.7V (Vout≤ 1.9V)
Load Regulation
Dropout Voltage
ΔVLOR
10
30
mV
IOUT = 0.1~300mA
870
970
470
570
3.0V≤VOUT≤3.3V
2.5V≤VOUT≤2.9V
2.0V≤VOUT≤2.4V
1.3V≤VOUT≤1.9V
IL=300mA
VDROP
mV
V
800
1200
1660
1260
Noise Bypass Terminal Voltage
Output Noise
VREF
1.23
μV
CBP = 0.1μF, f = 1KHz,VIN = 5V
Δn
0.46
Hz
f = 1KHz, Ripple = 0.5VP-P
,
dB
Ripple Rejection
RR
55
C
BP = 0.1μF
Shutdown Pin Current
ISHDN
0.1
0.6
μA
V
Shutdown Pin Voltage (ON)
Shutdown Pin Voltage (OFF)
Output ON
1.6
Output OFF
V
CBP=0.1μF, COUT=1μF,
Shutdown Exit Delay Time
Δt
300
155
μS
IOUT=30mA
Thermal Shutdown Temperature
TSD
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=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).
4
AIC1731
TYPICAL PERFORMANCE CHARACTERISTICS
60
50
40
30
20
10
0
700
600
500
400
300
200
100
0
AIC1731-33
1.5V
3.3V
TA=80°C
TA=20°C
TA=50°C
TA=-40°C
0
1
2
3
4
5
6
7
0
50
100
150
200
250
300
V
(V)
I
(mA)
IN
LOAD
Fig. 1 Quiescent Current vs. V
IN
Fig. 2 V
vs. I
LOAD
DROP
44.0
43.5
43.0
42.5
42.0
41.5
41.0
40.5
40.0
39.5
39.0
800
700
600
500
400
300
200
100
3.3V
1.5V
3.3V
1.5V
V
=6V
IN
T =25°C
A
0
0
1
2
3
4
5
6
7
0
50
100
150
200
250
300
Input Voltage (V)
I
(mA)
LOAD
Fig. 3 Ground Current vs. I
LOAD
Fig. 4 Input Voltage vs. Short Circuit Current
46
44
42
40
38
36
45
44
43
42
41
40
AIC1731-33
300mA
3.3V
1.5V
150mA
30mA
V
IN
=5V
39
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Temperature (°C)
Fig. 6 Quiescent Current vs Temperature
Temperature (°C)
Fig. 5 Ground Current vs. Temperature
5
AIC1731
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
3.50
640
3.45
AIC1731-33
620
3.40
3.35
3.30
600
580
560
VIN=7V
VIN=6V
3.25
3.20
3.15
3.10
540
520
500
480
VIN=5V
V
=5V
IN
-40
-20
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Temperature (°C)
Fig. 7 Output Voltage vs. Temperature
Temperature (°C)
Fig. 8 Current Limit vs. Temperature
1.30
500
450
400
350
300
250
200
TA=85oC
AIC1731-15
AIC1731-25
1.25
1.20
1.15
TA=50oC
TA=-40oC
TA=20o
TA=-40oC
TA=20oC
o
1.10
1.05
TA=50 C
150
100
TA=85oC
50
0
1.00
0
50
100
150
200
250
300
0
50
100
150
200
250
300
IOUT(mA)
IOUT(mA)
Fig. 9 VDROP vs. ILOAD
Fig. 10 VDROP vs. ILOAD
C
=0.1μF
=1μF
BP
C
C
=0.1μF
BP
C
OUT
=4.7μF
OUT
V
OUT
V
OUT
I
I
OUT=180mA
OUT=180mA
I
I
OUT=120mA
OUT=120mA
Fig. 11 Load Transient Response
Fig. 12 Load Transient Response
6
AIC1731
TYPICAL PERFORMANCE CHARACTERISTICS (Continued)
Vin=V
+2V
Vin=V
+2V
OUT
OUT
Vin=V
+1V
OUT
Vin=V
+1
OUT
V =3.3V
OUT
V
=3.3V
OUT
CIN=1μF, COUT=1μF
BP=0.1μF
Iout=50mA
CIN=1μF, COUT=4.7μF
BP=0.1μF
C
C
Iout=50mA
Fig. 13 Line Transient Response
Fig. 14 Line Transient Response
V =Vout+2V
IN
V =Vout+2V
IN
Vin=Vout+1V
V =Vout+1V
IN
V =1.5V
OUT
V =1.5V
OUT
CIN=1μF, COUT=4.7μF
CIN=1μF, COUT=1μF
BP=0.1μF
Iout=50mA
C
BP=0.1μF
C
Iout=50mA
Fig. 15 Line Transient Response
Fig. 16 Line Transient Response
0
-10
-20
-30
-40
-50
-60
COUT=1uF ; CBP=0.1uF
I
=30mA
OUT
C
C
=0.1μF
=1μF
BP
V
OUT
OUT
IL=300mA
IL=100mA
V
SHDN
IL=100mA
IL=30mA
10
100
1000
10000
100000
1000000
1E7
Fig. 17 Shutdown Exit Time
Frequency(Hz)
Fig. 18 Ripple Rejection
7
AIC1731
BLOCK DIAGRAM
VIN
Current
Limiting
BP
-
Error
Amp.
VOUT
VREF
1.23V
+
Thermal
Limiting
Power
Shutdown
SHDN
GND
PIN DESCRIPTIONS
PIN 1 : VIN
-
Power supply input pin. Bypass
PIN 4 : BP
- Noise bypass pin. An external
bypass capacitor connected to
BP pin reduces noises at the
output.
with a 1μF capacitor to GND
PIN 2 : GND - Ground pin.
PIN 3 : SHDN - Active-Low shutdown input pin.
PIN 5 : VOUT - Output pin. Sources up to 300
mA.
8
AIC1731
DETAILED DESCRIPTIONS OF TECHNICAL TERMS
is specified by the output current ranging from
0.1mA to 300mA.
DROPOUT VOLTAGE (VDROP
)
The dropout voltage is defined as the difference
between the input voltage and output voltage at
which the output voltage drops 100mV. Below
this value, the output voltage will fall as the input
voltage reduces. It depends on the load current
and junction temperature.
CURRENT LIMIT (IIL)
AIC1731 includes a current limiting, which
monitors and controls the maximum output
current if the output is shorted to ground. This
can protect the device from being damaged.
LINE REGULATION
THERMAL PROTECTION
Line regulation is the ability of the regulator to
maintain a constant output voltage as the input
voltage changes. The line regulation is specified
Thermal sensor protects device when the
junction temperature exceeds TJ= +155ºC. It
signals shutdown logic, turning off pass transistor
and allowing IC to cool down. After the IC’s
junction temperature cools by 15ºC, the thermal
sensor will turn the pass transistor back on.
Thermal protection is designed to protect the
device in the event of fault conditions. For a
continuous operation, do not exceed the absolute
maximum junction-temperature rating of TJ=
150ºC, or damage may occur to the device.
as the input voltage changes from VIN = VOUT
1V to VIN = 7V and IOUT = 1mA.
+
LOAD REGULATION
Load regulation is the ability of the regulator to
maintain a constant output voltage as the load
current changes. A pulsed measurement with an
input voltage set to VIN = VOUT + VDROP can
minimize temperature effects. The load regulation
APPLICATION INFORMATION
INPUT-OUTPUT CAPACITORS
important to pay more attention in thermal
resistance. It includes junction to case, junction
to ambient. The maximum power dissipation of
AIC1731 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
conductivity is used, the junction temperature
will be low even when large power dissipation
applies.
Linear regulators require input and output
capacitors to maintain stability. Input capacitor at
1μF with a 1uF aluminum electrolytic output
capacitor is suggested.
NOISE BYPASS CAPACITOR
0.1μF bypass capacitor at BP pin reduces output
voltage noise. And the BP pin has to connect a
capacitor to GND.
POWER DISSIPATION
The AIC1731 obtains thermal-limiting circuitry,
which is designed to protect the device against
overload condition. For continuous load
The power dissipation across the device is
P = IOUT (VIN-VOUT).
condition,
maximum
rating
of
junction
temperature must not be exceeded. It is
9
AIC1731
The maximum power dissipation is:
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.
(TJ-max - TA )
PMAX =
RθJA
Where TJ-max is the maximum allowable junction
temperature (125°C), and TA is the ambient
temperature suitable in application.
As a general rule, the lower temperature is, the
better reliability of the device is. So the PCB
10
AIC1731
PHYSICAL DIMENSIONS (unit: mm)
z SOT-89-5
D
A
D1
C
e
S
SOT-89-5
Y
M
B
O
L
MILLIMETERS
e1
MIN.
1.40
0.36
0.35
4.40
MAX.
A
1.60
B
C
D
0.56
0.44
4.60
D1
E
1.50
2.29
1.83
2.60
e
1.50 BSC
3.00 BSC
B
e1
H
3.94
0.80
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
AIC1731
z SOT-23-5
D
S
Y
M
B
O
L
SOT-25
MILLIMETERS
MIN.
0.95
MAX.
A
1.45
A1
A2
b
0.05
0.90
0.30
0.08
0.15
1.30
0.50
0.22
c
e
A
A
e1
D
E
2.80
2.60
3.00
3.00
SEE VIEW B
b
E1
e
1.50
1.70
WITH PLATING
0.95 BSC
1.90 BSC
e1
BASE METAL
SECTION A-A
L
0.30
0°
0.60
8°
L1
θ
0.60 REF
GAUGE PLANE
SEATING PLANE
L
L1
VIEW B
Note : 1. Refer to JEDEC MO-178AA.
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.
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.
12
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