SPX2808M3-L-3.5 [SIPEX]
Fixed Positive LDO Regulator, 3.5V, 0.7V Dropout, PDSO4, LEAD FREE, TO-261AA, SOT-223, 4 PIN;
| 型号： | SPX2808M3-L-3.5 |
| 厂家： | 
SIPEX CORPORATION |
| 描述： | Fixed Positive LDO Regulator, 3.5V, 0.7V Dropout, PDSO4, LEAD FREE, TO-261AA, SOT-223, 4 PIN 光电二极管 输出元件 调节器 |
| 文件： | 总6页 (文件大小：44K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
®
SPX2808
300mA Low Dropout Voltage Regulator
SOT-89 (M1)
SOT-223 (M3)
FEATURES
■ 3.3V and 3.5V Versions
■ Input-Output Differential is 0.35V at 200mA
■ Input-Output Differential is 0.45V at 300mA
■ Mirror-Image Insertion Protection
■ Internal Thermal Protection
1
2
3
1
2
3
V
V
GND VOUT
VOUT
GND
IN
IN
■ Available in SOT-223 and SOT-89
Top View
Packages
Now Available in Lead Free Packaging
■ Short Circuit Protection
■ 2% Output Accurancy, SPX2808A
■ Portable Instrumentation
■ Cordless Telephones
■ USBs
APPLICATIONS
■ CD-ROMs
■ Scanners
■ Toys
■ Radio Control Systems
DESCRIPTION
The SPX2808 is a low power, positive voltage regulator. This device is an excellent choice for
use in battery-powered applications such as cordless telephones, radio control systems, and
portablecomputers.TheSPX2808featuresoffersverylowquiescentcurrents(0.4mA),andvery
low drop output voltage (50mV at light load and 450mV at 300mA). The SPX2808 is offered in
a 3-pin SOT-223 and SOT-89 package.
TYPICAL APPLICATIONS CIRCUIT
V
OUT
V
IN
SPX2808
100µF,
1µF
C 1
ESR 0.05 to 0.6
ohms
Gnd
Date: 5/25/04
SPX2808 300mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
1
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONSITIONS
Power Dissipation (note 3) ........................................ Internally limited
Lead Temp (soldering, 5 seconds) ............................................ 260°C
Storage Temperature Range ..................................... -65°C to +150°C
Input Supply Voltage Range .......................................... -0.3V to +30V
ESD Rating (note 4) ...................................................................... 2kV
Input Supply Voltage Range ............................................. 3.0V to 26V
Operating Junction Temperature Range ....................... -40°C to 85°C
SOT-89 ΘJA ............................................................................. 90°C/W
SOT-223 ................................................................................. 60°C/W
ELECTRICAL CHARACTERISTICS
at TA=25°C, unless otherwise specified. (Note 1)
PARAMETER
CONDITIONS
Min
Typ
SP2808A
100
Max
Min
Typ
SP2808
100
Max
Units
3.3V Version
Quiescent Current (IQ)
IOUT = 0mA, Except ICONT
200
3.36
0.4
200
3.40
0.4
µA
V
Output Voltage (VOUT
)
IOUT = 50mA, Except ICONT
VIN = 8V, at Output Off
3.24
3.3
3.20
3.3
Line Regulation
IOUT = 40mA,
5 ≤ VIN ≤ 10V
0.3
0.3
%/V
Load Regulation
IOUT = 1mA
→
60mA
100mA
10
30
40
80
10
30
40
80
mV
mV
IOUT = 1mA
→
Dropout Voltage (VDROP
)
IOUT = 60mA
IOUT = 200mA
IOUT = 300mA
0.2
0.35
0.45
0.3
0.7
0.2
0.35
0.45
0.3
0.7
V
V
V
Continuous Output
IOUT when VOUT drops 0.3V
from VO (typ)(Note 3)
400
400
mA
Current (IOUT
)
Temperature Coefficient
Pulse Output Current
3.5V Version
100
100
ppm/°C
5 ms pulse, 12.5% duty cycle
300
300
mA
Quiescent Current (IQ)
IOUT = 0mA, Except ICONT
100
3.5
0.3
200
3.57
0.4
100
3.5
0.3
200
3.60
0.4
µA
V
Output Voltage (VOUT
)
IOUT = 50mA, Except ICONT
VIN = 8V, at Output Off
3.43
3.40
Line Regulation
IOUT = 40mA,
5 ≤ VIN ≤ 10V
%/V
Load Regulation
IOUT = 1mA
→
60mA
100mA
10
30
40
80
10
30
40
80
mV
mV
IOUT = 1mA
→
Dropout Voltage (VDROP
)
IOUT = 60mA
IOUT = 200mA
IOUT = 300mA
0.2
0.35
0.45
0.3
0.7
0.2
0.35
0.45
0.3
0.7
V
V
V
Continuous Output
IOUT when VOUT drops 0.3V
from VO (typ)(Note 3)
400
400
mA
Current (IOUT
)
Temperature Coefficient
Pulse Output Current
NOTES:
100
100
ppm/°C
5 ms pulse, 12.5% duty cycle
300
300
mA
Note 1: When mounted as recommended. Derate 11mW/°C for SOT-89 packages when ambient temperatures are over 25°C.
Note 2: See TYPICAL APPLICATIONS notes to ensure constant junction temperature, low duty cycle pulse testing used.
Note 3: All limits are at 25°C; Boldface limits are over the full operating junction temperature range of -40°C to +85°C.
Note 4: The maximum power dissipation is a function of maximum junction temperature, total thermal resistance, and ambient temperature.
Note 5: Human body model, 100pF discharged through 1.5kΩ.
Date: 5/25/04
SPX2808 300mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
2
TYPICAL PERFORMANCE CHARACTERISTICS
800
500
2.0
1.6
T
J = 25ºC
400
300
200
100
= 85ºC
T J
1.2
0.8
0.4
0.0
= -40ºC
T J
0
0
10 20 30
50 60 70 80 90
0
20
10
INPUT VOLTAGE (V)
40
30
AMBIENT TEMPERATURE (ºC)
Figure 1. Peak Output Current
Figure 2. Minimum Power Dissipation (SOT-89)
APPLICATION INFORMATION
junction temperature does not exceed 25°C, the
output capacitor can be reduced by the factor of
two over the value needed for the entire tem-
perature range.
The SPX2808 requires an output capacitor for
devicestability.Thevaluerequiredvariesgreatly
dependingupontheapplicationcircuitandother
factors. The high frequency characteristics of
electrolytic capacitors depend greatly on the
type and also on the manufacturer. Sometimes
only bench testing is the only means to deter-
mine the proper capacitor type and value. The
high quality 100µF aluminum electrolytic cov-
ers all general application circuits, this stability
can be obtained with a tantalum electrolytic
value of 47µF.
In most applications the SPX2808 is operating
at few milliamps. In these applications the out-
put capacitance can be further reduced. For
example, when the regulator is running at 10mA
output current the output capacitance value is
half compared to the same regulator that is
running at 100mA. The value decreases with
higher output voltages, since the internal loop
gain is reduced.
Another critical point of electrolytic character-
istics is its performance over temperature. The
SPX2808 is designed to operate starting at -
40°C which may not be true in the case of
electrolytic. Higher temperatures generally no
problem. The electrolytic. type in aluminum
will freeze around -30°C. This could cause an
oscillation at output of regulator. At a lower
temperature requirement by many applications
the capacitor should maintain its performance.
So as a result, for an application which regulator
The worst case occurs at the lower temperature
and maximum operating currents, the entire
circuit and the electrolytic, should be cooled
down to the minimum temperature. The mini-
mum of 0.6 volts required at the input of regula-
tor above the output to keep the power dissipa-
tion and die heating to its minimum. After the
value for the capacitor has been determined for
actual use, the value should be doubled.
Date: 5/25/04
SPX2808 300mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
3
PACKAGE: 3 PIN SOT-89
D
D1
3
Ø1.0
H
E
5º(2x)
L
1
2
e
e1
C
Dimensions in (mm)
MIN NOM MAX
3 PIN SOT-89
A
b
1.40 1.50
1.60
0.48
8º(2x)
0.36
0.42
0.80
0.41
-
1.20
0.53
L
0.47
b1
C
Ro.15
0.38
4.40
0.40
4.50
0.43
4.60
D
D1
1.40 1.60
3.94
1.75
4.25
2.60
H
E
e
-
b
b
b1
2.40 2.50
1.45 1.50
2.90 3.00
1.55
3.10
e1
3 PIN SOT-89
Date: 5/25/04
SPX2808 300mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
4
PACKAGE: 3 PIN SOT-223
C
D
b2
C
C
N
E
See detail
A
E1
A
A1
H
1
B
B
GAUGE
PLANE
e
b
SEATING
PLANE
L
0
C
b
3 PIN SOT-223
JEDEC TO-261
(AA) Variation
Dimensions in (mm)
MIN NOM MAX
WITH PLATING
c
A
-
-
-
1.80
0.10
0.02
A1
1.50 1.60 1.70
A2
b
Section B-B
0.66 0.76
2.90 3.00
0.84
3.10
BASE METAL
b2
c
0.23
6.30
0.30
6.50
7.00
0.35
6.70
D
c
6.70
3.30
7.30
E
3.50 3.70
2.30 BASIC
4.60 BASIC
E1
e
b2
Section C-C
e1
L
ø
0.75
0º
-
-
-
10º
3 PIN SOT-223
Date: 5/25/04
SPX2808 300mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
5
ORDERING INFORMATION
PART NUMBER
ACCURACY
2%
OUTPUT VOLTAGE
3.3V
PACKAGE
SPX2808M1-3.3
SPX2808M1-3.3/TR
SPX2808M1-3.5
SPX2808M1-3.5/TR
SPX2808M1-3.3
SPX2808M1-3.3/TR
SPX2808M1-3.5
SPX2808M1-3.5/TR
SPX2808M3-3.3
SPX2808M3-3.3/TR
SPX2808M3-3.5
SPX2808M3-3.5/TR
SPX2808M3-3.3
SPX2808M3-3.3/TR
SPX2808M3-3.5
SPX2808M3-3.5/TR
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
3 lead SOT-223
2%
3.3V
2%
3.5V
2%
3.5V
3%
3.3V
3%
3.3V
3%
3.5V
3%
3.5V
2%
3.3V
2%
3.3V
2%
3.5V
2%
3.5V
3%
3.3V
3%
3.3V
3%
3.5V
3%
3.5V
Available in lead free packaging. To order add “-L” suffix to part number.
Example: SPX2808M3-3.5/TR = standard; SPX2808M3-L-3.5/TR = lead free
/TR = Tape and Reel
Pack quantity is 2,500 for SOT-89 and SOT-223.
Corporation
ANALOG EXCELLENCE
Sipex Corporation
Headquarters and
Sales Office
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 934-7500
FAX: (408) 935-7600
Sipex Corporation reserves the right to make changes to any products described herein. Sipex does not assume any liability arising out of the
application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.
Date: 5/25/04
SPX2808 300mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
6
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