AIC AIC1735-18XU 500ma low dropout linear regulator Datasheet

AIC1735
500mA Low Dropout Linear Regulator
„ `FEATURES
„ DESCRIPTION
Low Dropout Voltage of 650mV at 500mA
Output Current (3V Output Version).
The AIC1735 is a 3-pin low dropout linear
z
Guaranteed 500mA Output Current.
AIC1735 include zero base current loss, very
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Low Ground Current at 65μA.
low dropout voltage, and 2% accuracy output
z
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.
voltage.
z
Only needs 4.7μF Output Capacitor for Stability.
substantially low when output current is
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Current and Thermal Limiting.
100mA.
z
regulator. The superior characteristics of the
Typical
ground
current
remains
approximately 65μA, for loading ranging from
zero to maximum. Dropout voltage turns
Built-in output current limiting and
thermal limiting provide maximal protection to
„ APPLICATIONS
the AIC1735 against fault conditions.
z
CD-ROM Drivers.
The AIC1735 is available in popular SOT-23,
z
LAN Cards.
SOT-223, SOT-89 and TO-252 packages.
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Microprocessor.
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RAM Module.
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Wireless Communication Systems.
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Battery Powered Systems.
„ TYPICAL APPLICATION CIRCUIT
VOUT
VIN
AIC1735
VIN
+
1μF
CIN
GND
VOUT
+
4.7μF
COUT
(Note1)
Low Dropout Linear Regulator
Analog Integrations Corporation
Si-Soft Research Center
DS-1735G-01 040606
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
AIC1735
„ ORDERING INFORMATION
AIC1735-XXXX XX
PIN CONFIGURATION
PACKING T YPE
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
G: Green Package
OUTPUT
18:
20:
25:
27:
30:
33:
35:
37:
38:
50:
52:
VOLTAGE
1.8V
2.0V
2.5V
2.7V
3.0V
3.3V
3.5V
3.7V
3.8V
5.0V
5.2V
3
SOT-23
TOP VIEW
1: GND
2: VOUT
3: VIN
1
TO-252
TOP VIEW
1: VOUT
2. GND
3. VIN
2
1
2
3
SOT-89
TOP VIEW
1: GND
2. VIN
3. VOUT
1
2
3
1
2
3
SOT-223
TOP VIEW
1: VOUT
2. GND
3. VIN
Example: AIC1735-18CETR
Æ 1.8V Version, in TO-252 Package & Tape & Reel
Packing Type
AIC1735-18PYTR
Æ 1.8V Version, in Lead Free SOT-223 Package & Tape
& Reel Packing Type
AIC1735-18GYTR
Æ 1.8V Version, in Green SOT-223 Package& Tape &
Reel Packing Type
2
AIC1735
z
z
z
SOT-23 MARKING
Part No.
CU
PU
GU
Part No.
CU
PU
GU
AIC1735-18XU
CE18
CE18P
CE18G
AIC1735-35XU
CE35
CE35P
CE35G
AIC1735-20XU
CE20
CE20P
CE20G
AIC1735-37XU
CE37
CE37P
CE37G
AIC1735-25XU
CE25
CE25P
CE25G
AIC1735-38XU
CE38
CE38P
CE38G
AIC1735-27XU
CE27
CE27P
CE27G
AIC1735-50XU
CE50
CE50P
CE50G
AIC1735-30XU
CE30
CE30P
CE30G
AIC1735-52XU
CE52
CE52P
CE52G
AIC1735-33XU
CE33
CE33P
CE33G
SOT-89 MARKING
Part No.
CX
PX
GX
Part No.
CX
PX
GX
AIC1735-18XX
CF18
CF18P
CF18G
AIC1735-35XX
CF35
CF35P
CF35G
AIC1735-20XX
CF20
CF20P
CF20G
AIC1735-37XX
CF37
CF37P
CF37G
AIC1735-25XX
CF25
CF25P
CF25G
AIC1735-38XX
CF38
CF38P
CF38G
AIC1735-27XX
CF27
CF27P
CF27G
AIC1735-50XX
CF50
CF50P
CF50G
AIC1735-30XX
CF30
CF30P
CF30G
AIC1735-52XX
CF52
CF52P
CF52G
AIC1735-33XX
CF33
CF33P
CF33G
SOT-223 MARKING
Part No.
CY
PY
GY
Part No.
CY
PY
GY
AIC1735-18XY
CC18
CC18P
CC18G
AIC1735-35XY
CC35
CC35P
CC35G
AIC1735-20XY
CC20
CC20P
CC20G
AIC1735-37XY
CC37
CC37P
CC37G
AIC1735-25XY
CC25
CC25P
CC25G
AIC1735-38XY
CC38
CC38P
CC38G
AIC1735-27XY
CC27
CC27P
CC27G
AIC1735-50XY
CC50
CC50P
CC50G
AIC1735-30XY
CC30
CC30P
CC30G
AIC1735-52XY
CC52
CC52P
CC52G
AIC1735-33XY
CC33
CC33P
CC33G
3
AIC1735
„ ABSOLUTE MAXIMUM RATINGS
Input Supply Voltage
-0.3~12V
Operating Temperature Range
-40°C~ 85°C
Maximum Junction Temperature
150°C
Storage Temperature Range
Lead Temperature (Soldering) 10 sec.
Thermal Resistance Junction to Case
-65°C~150°C
260°C
SOT-23 Package
130°C/W
TO-252 Package
12.5°C/W
SOT-89 Package
100°C/W
SOT-223 Package
15°C/W
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
130°C/W
Absolute Maximum Ratings are those values beyond which the life of a device may be impaired.
„ TEST CIRCUIT
Refer to the TYPICAL APPLICATION CIRCUIT
4
AIC1735
„
ELECTRICAL CHARACTERISTICS
(TA=25°C, CIN=1μF, COUT=4.7μF, unless
otherwise specified.) (Note2)
PARAMETER
Output Voltage
Output Voltage
Temperature
Coefficiency
Line Regulation
Load Regulation
(Note 4)
Current Limit
(Note 5)
TEST CONDITIONS
No Load
AIC1735-52
AIC1735-50
AIC1735-38
AIC1735-37
AIC1735-35
AIC1735-33
AIC1735-30
AIC1735-27
AIC1735-25
AIC1735-20
AIC1735-18
VIN=5.5~12V
VIN=5.5~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.7~12V
VIN=4.0~12V
VIN=4.0~12V
VIN=4.0~12V
VIN=4.0~12V
VIN=4.0~12V
MIN.
TYP.
MAX.
UNIT
5.100
4.900
3.725
3.625
3.430
3.235
2.940
2.646
2.450
1.960
1.764
5.200
5.000
3.800
3.700
3.500
3.300
3.000
2.700
2.500
2.000
1.800
5.300
5.100
3.875
3.775
3.570
3.365
3.060
2.754
2.550
2.040
1.836
V
(Note 3)
IL=1mA,
1.4V≤VOUT≤3.2V
3.3V≤VOUT≤5.2V
IL=0.1~500mA
1.4V≤VOUT≤3.9V
4.0V≤VOUT≤5.2V
50
VIN=4V~12V
VIN=5.5V~12V
3
3
10
10
mV
VIN=5V
VIN=7V
10
20
30
50
mV
VIN=7V, VOUT=0V
Dropout Voltage
(Note 6)
IL=500mA
Ground Current
IO=0.1mA~IMAX
1.4V≤VOUT≤3.9V
4.0V≤VOUT≤5.2V
PPM/°C
500
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=5~12V
VIN=7~12V
mA
510
650
780
1100
1400
710
850
980
1300
1600
mV
65
65
90
90
μA
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).
Note 3:
Guaranteed by design.
Note 4:
Regulation is measured at constant junction temperature, using pulse testing with a low ON
time.
Note 5:
Current limit is measured by pulsing a short time.
Note 6:
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.
5
AIC1735
TYPICAL PERFORMANCE CHARACTERISTICS
500
600
AIC1735-52
AIC1735-33
500
T=25°C
VDROP (mV)
VDROP (mV)
400
300
200
T=25°C
400
300
200
100
100
0
0
50
100
150
200
250
300
350
400
450
500
0
0
ILOAD (mA)
Fig. 1
VDROP (mV)
440
100
VDROP vs. ILOAD
AIC1735-52
ILOAD=500mA
420
400
380
360
200
250
300
350
400
450
500
620
AIC1735-33
600
ILOAD=500mA
580
560
540
520
500
340
480
320
-40 -30 -20 -10
0
10
20
30
40
50
60
70
460
-40
80
-20
Temperature (°C)
Fig. 3
Fig. 4
VDROP vs. Temperature
0
20
40
60
80
Temperature (°C)
VDROP vs. Temperature
46.0
46.0
AIC1735-52
Ground Current (μA)
45.5
T=25°C
45.0
44.5
44.0
45.5
AIC1735-33
T=25°C
45.0
44.5
44.0
43.5
43.5
43.0
0
150
640
VDROP (mV)
460
50
ILOAD (mA)
Fig. 2 VDROP vs. ILOAD
480
Ground Current (μA)
„
50
100
150
200
250
300
350
400
450
500
43.0
0
50
100
Fig. 5
Ground Current vs. ILOAD
150
200
250
300
350
400
450
500
ILOAD (mA)
ILOAD (mA)
Fig. 6
Ground Current vs. ILOAD
6
AIC1735
TYPICAL PERFORMANCE CHARACTERISTICS
Ground Current (μA)
Ground Current (μA)
AIC1735-33
AIC1735-52
45
ILOAD = 500mA
44
43
42
45.5
ILOAD = 500mA
45.0
44.5
44.0
43.5
41
40
-40
-20
0
20
40
60
43.0
-40
80
-20
Fig. 7
0
20
40
60
80
Temperature (°C)
Temperature (°C)
Ground Current vs. Temperature
Fig. 8
Ground Current vs. Temperature
100
700
AIC1735
690
AIC1735 -18
VIN=5V ; COUT=1uF
VIN= 7V
680
10
670
660
VIN= 6V
650
ESR(O)
Current Limit (mA)
(Continued)
46.0
46
640
VIN= 5V
630
1
Stable Region
620
610
0.1
600
590
580
-40
-20
0
20
40
60
0.01
80
100
Temperature (°C)
Fig. 9
200
300
400
500
IOUT(mA)
Current Limit vs. Temperature
Fig. 10 Region of Stable COUT ESR vs. Load Current
100
100
AIC1735 -18
VIN=5V ; COUT=10uF
AIC1735 -18
VIN=5V ; COUT= 4.7uF
10
ESR(O)
10
ESR(O)
„
1
1
Stable Region
Stable Region
0.1
0.1
0.01
0.01
100
200
300
400
500
IOUT(mA)
Fig. 11 Region of Stable COUT ESR vs. Load Current
100
200
300
400
500
IOUT(mA)
Fig. 12 Region of Stable COUT ESR vs. Load Current
7
AIC1735
„ 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.
„ APPLICATION INFORMATION
INPUT-OUTPUT CAPACITORS
Linear regulators require input and output
capacitors to maintain stability. A 1uF aluminum
electrolytic input capacitor with a 4.7uF
aluminum electrolytic output capacitor is
recommended. To avoid oscillation, it is
recommended to follow the figures of “Region of
Stable COUT ESR vs. Load Current” to choose
proper capacitor specifications.
POWER DISSIPATION
The AIC1735 obtains thermal-limiting circuitry,
which is designed to protect the device against
overload condition. For continuous load
condition,
maximum
rating
of
junction
temperature must not be exceeded. It is
important to pay more attention in thermal
resistance. It includes junction to case, junction
to ambient. The maximum power dissipation of
AIC1735 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.
The power dissipation across the device is
P = IOUT (VIN-VOUT).
The maximum power dissipation is:
(T
- TA )
PMAX = J-max
Rθ JA
Where TJ-max is the maximum allowable junction
temperature (125°C), and TA is the ambient
8
AIC1735
temperature suitable in application.
As a general rule, the lower temperature is, the
better reliability of the device is. So the PCB
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.
„ PHYSICAL DIMENSIONS (unit: mm)
z SOT-23
D
S
Y
M
B
O
L
A
E
E1
e
SOT-23
MILLIMETERS
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
A
e1
SEE VIEW B
WITH PLATING
e
0.95 BSC
e1
1.90 BSC
c
A
A2
b
BASE METAL
A1
SECTION A-A
L
0.60 REF
L1
0°
8°
0.25
θ
0.60
0.30
GAUGE PLANE
SEATING PLANE
θ
L
L1
VIEW B
Note:
1.Refer to JEDEC MO-178.
2.Dimension D and E1 do not include mold flash, protrusions or
gate burrs. Mold flash, protrusion or gate burrs shall not exceed
10 mil per side.
3.Controlling dimension is millimeter, converted inch dimensions
are not necessarily exact.
9
AIC1735
z TO-252
A
E
S
Y
M
B
O
L
c2
H
D
L4
A
A
e
SEE VIEW B
TO-252-3L
MILLIMETERS
MIN.
MAX.
A
2.19
2.38
A1
0.00
0.13
b
0.64
0.89
b3
4.95
5.46
c
0.46
0.61
L3
b3
c2
0.46
0.89
D
5.33
6.22
E
6.35
6.73
e
b
2.28 BSC
H
9.40
L
1.40
10.41
c
WITH PLATING
L1
BASE METAL
SECTION A-A
θ
GAUGE PLANE
L2
0.89
2.03
L4
--
1.02
θ
0°
8°
A1
L
L2
0.51 BSC
L3
SEATING PLANE
L1
1.78
2.67 REF
VIEW B
Note:
1.Refer to JEDEC TO-252AA and AB.
2.Dimension D and E do not include mold flash, protrusions or
gate burrs. Mold flash, protrusion or gate burrs shall not exceed
6 mil per side.
3.Controlling dimension is millimeter, converted inch dimensions
are not necessarily exact.
10
AIC1735
SOT-89
D
A
H
E
e
e1
S
Y
M
B
O
L
C
D1
L
z
SOT-89
MILLIMETERS
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
e
e1
B1
2.60
1.50 BSC
3.00 BSC
H
3.94
4.25
L
0.89
1.20
B
Note:
1.Refer to JEDEC TO-243AA.
2.Controlling dimension is millimeter, converted inch dimensions
are not necessarily exact.
11
AIC1735
SOT-223
D
S
Y
M
B
O
L
b2
SOT-223
MILLIMETERS
MIN.
MAX.
A
E
E1
A
A
SEE VIEW B
e
e1
b
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
WITH PLATING
c
A
A2
e
BASE METAL
SECTION A-A
θ
3.70
2.30 BSC
e1
L
4.60 BSC
0.90
0°
8°
GAUGE PLANE
SEATING PLANE
VIEW B
0.25
L
θ
z
Note:
1. Refer to JEDEC TO-261AA.
2. Dimension D and E1 are determined at the outermost
extremes of the plastic body exclusive of mold flash, tie bar
burrs, gate burrs, and interlead flash, but including any
mismatch between the top and bottom of the plastic body.
3. 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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