SPX2931CM1-3.5 [SIPEX]
100mA Low Dropout Voltage Regulator; 100mA时的低压差稳压器型号: | SPX2931CM1-3.5 |
厂家: | SIPEX CORPORATION |
描述: | 100mA Low Dropout Voltage Regulator |
文件: | 总8页 (文件大小:86K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
®
SPX2931
100mA Low DropoutVoltage Regulator
FEATURES
■ 3.3V and 3.5V Versions
TO-92 (N)
SOT-89 (M1)
■ Output Current in Excess of 100 mA
■ Input-Output Differential is 0.3 at 100mA
■ Mirror-Image Insertion Protection
■ Internal Thermal Protection
■ Available in TO-92 and SOT-89 Packages
1
2
3
1
2
3
VOUT
VIN
GND
VIN
GND VOUT
Top View
■ Improved Version of the Industry
Bottom View
Standard LM2931
Now Available in Lead Free Packaging
■ Reverse Battery, Internal Short Circuit,
20V Reverse Transient and 60V Load
Dump Protection
■ Availiable with either 2% or 3% Output
Accurancy at 25°C
APPLICATIONS
■ Portable Instrumentation
■ Cordless Telephones
■ Radio Control Systems
DESCRIPTION
The SPX2931 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.TheSPX2931featuresoffersverylowquiescentcurrents(0.4mA),andvery
low drop output voltage (50 mV at light load and 300 mV at 100 mA). The SPX2931 is offered
in a 3-pin TO-92, and SOT-89 package.
TYPICAL APPLICATIONS CIRCUIT
V
VOUT
IN
SPX2931
100µF,
ESR 0.05 to 0.6
ohms
1µF
C 1
Gnd
Date: 05/25/04
SPX2931 100mA 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 ............................................. -0.3 to +30V
ESD Rating (note 4) ...................................................................... 2kV
Input Voltage Range ........................................................... 3.0 to 26V
Operating Junction Temperature Range ..................... -40°C to 125°C
TO-92ΘJA ............................................................................... 160°C/W
SOT-89ΘJA ............................................................................ 110°C/W
ELECTRICAL CHARACTERISTICS
at VIN=6V, TA = 25°C, IO = 10 mA, COUT = 100 µF, unless otherwise specified. (Note 1)
PARAMETER
3.3V Version
CONDITIONS
MIN
TYP
MAX
MIN
TYP MAX
UNITS
Output Voltage (Note 2) 4V < VIN <26V,
IO = 100 mA over temp.
3.234
3.300
3.300
3.366
3.201
3.300 3.399
V
3.201
3.399
3.135
3.300 3.465
3.5V Version
Output Voltage (Note 2) 4.5V < VIN < 26V,
3.430
3.500
3.500
3.570
3.395
3.500 3.605
IO = 100mA Over Temp.
V
3.395
3.605
3.325
3.500 3.675
All Voltage Options
Long Term Stability
Line Regulation
20
20
mV/1000hr
mV
9V<VIN<16V,
4.5V<VIN<26V
2.0
4.0
10
30
4.0
30
50
Load Regulation
Dropout Voltage
5mA<IO< 150mA
14
50
14
mV
V
IO =10mA
IO =150mA
0.05
0.3
0.2
0.6
0.05
0.3
0.2
0.6
Quiescent Current
IO =10mA, 4.5V<VIN<26V
-40°C<Tj<85°C
0.4
15
1.0
0.4
15
1.0
mA
IO =150mA, VIN=14V,
TJ =25°C
Output Noise Voltage
Ripple Rejection
10Hz-100kHz, COUT =100µF
500
80
500
80
µVRMS
FO =120Hz
dB
Maximum Operational
Input Voltage
26
60
26
50
V
V
V
Maximum Line Transient RL = 500Ω, 100ms
70
70
Reverse Polarity Input
Voltage, DC
VO> -0.3V, RL= 500Ω
-15
-30
-15
-30
Reverse Polarity Input
Voltage, Transient
1% Duty Cycle, τ <100ms
RL=500Ω
-50
-80
-50
-80
V
NOTES:
Note 1: See TYPICAL APLICATIONS notes to ensure constant junction temperature, low duty cycle pulse testing used.
Note 2: All limits are at 25°C or over the full operationg junction temperature range of -40°C to +125°C.
Note 3: The maximum power dissipation is a function of maximum junction temperature, total thermal resistance, and ambient temperature.
Note 4: Human body model, 100pF discharged through 1.5kΩ.
Date: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
2
TYPICAL PERFORMANCE CHARACTERISTICS
25
30
V IN = 14V
IO= 100mA
20
15
25
20
15
10
~
~
~
~
6
4
IO = 50mA
10
5
2
0
IO = 0mA
0
90
0
60
30
OUTPUT CURRENT (mA)
40
80
120
-40
0
JUNCTION TEMPERATURE (°C)
Figure 1. Quiescent Current
Figure 2. Quiescent Current
0.6
0.5
0.6
0.5
= 100mA
0.4
0.3
IO
0.4
0.3
0.2
IO = 50mA
= 10mA
0.2
0.1
IO
0.1
0
0
0
100
0
50
OUTPUT CURRENT (mA)
40
80
120
JUNCTION TEMPERATURE (ºC)
Figure 3. Dropout Voltage
Figure 4. Dropout Voltage
6.0
5.0
4.0
800
500
SPX2931 3.5
IO = 100 mA
T
J = 25ºC
400
300
200
100
= 85ºC
TJ
= -40ºC
TJ
3.0
2.0
1.0
0
0
20
INPUT VOLTAGE (V)
30
10
4.0
2.0
3.0
5.0
6.0
INPUT VOLTAGE (V)
Figure 5. Peak Output Current
Figure 6. Low Voltage Behavior
Date: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
3
TYPICAL PERFORMANCE CHARACTERISTICS
1.0
2.0
1.6
0.9
0.8
0.7
0.125" LEAD LENGTH
FROM PC BOARD
0.6
0.5
0.4
1.2
0.8
0.4
0.0
0.4" LENGTH
FROM PC BOARD
0.3
0.2
0.1
0
30
60
70
0
10
50
90
80
20
40
0
10 20 30
50 60 70 80 90
40
AMBIENT TEMPERATURE (ºC)
AMBIENT TEMPERATURE (ºC)
Figure 7. Maximum Power Dissipation (SOT89)
Figure 8. Maximum Power Dissipation (TO-92)
10
OPERATION DURING LOAD DUMP
LM2931-
5.0
70
60
IO
= 10mA
50
40
1
30
20
10
0
~
~
~
~
= 100µF
CO
RL
= 500
Ω
0.1
6
4
2
0
0.01
-2
150
30
60
90
0
120
500
-100
300
0
100 200
TIME (ms)
400
FREQUENCY (Hz)
Figure 9. Output Impedance
Figure 10. Operation During Load Dump
APPLICATION INFORMATION
Another critical point of electrolytic character-
istics is its performance over temperature. The
SPX2931 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
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 SPX2931 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
bench testing is the only means to determine the
proper capacitor type and value. The high qual-
ity 100°F aluminum electrolytic covers all gen-
eral application circuits, this stability can be
obtained with a tantalum electrolytic value of
47°F.
Date: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
4
TYPICAL PERFORMANCE CHARACTERISTICS
In most applications the SPX2931 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 100 mA. The value decreases with
higher output voltages, since the internal loop
gain is reduced.
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.
PACKAGE PINOUTS
TO-92 (N)
SOT-89 (M1)
1
2
3
1
2
3
VOUT
VIN
GND
VIN
GND VOUT
Top View
Bottom View
Date: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
5
PACKAGE: 3PIN TO-92
L
e1
e
W
D
A
b
S1
DIMENSIONS
IN
INCHES
3 PIN TO-92
SYMBOL
MIN NOM MAX
R
.195
.020
.155
.105
.055
.610
.095
.060
A
b
E
e
e1
L
R
.170
.014
.130
.095
-
-
-
-
-
-
.045
.500
.085
.045
E
-
S1
W
-
-
-
-
.016
.175
4º
0.022
.195
6º
D
a
a
(2x)
3 PIN TO-92
Date: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
6
PACKAGE: 3PIN 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
8º(2x)
0.36
0.42 0.48
0.80
0.41
-
1.20
L
0.47 0.53
b1
C
Ro.15
0.38
4.40
0.40 0.43
4.50 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: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
7
ORDERING INFORMATION
PART NUMBER
ACC.
OUTPUT VOLTAGE
3.3V
PACKAGE
SPX2931AM1-3.3
2%
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead SOT-89
3 lead TO-92
3 lead TO-92
3 lead TO-92
3 lead TO-92
3 Lead SOT-89
3 Lead SOT-89
3 Lead SOT-89
3 Lead SOT-89
3 Lead TO-92
3 Lead TO-92
3 Lead TO-92
3 Lead TO-92
SPX2931AM1-3.3/TR 2%
SPX2931AM1-3.5 2%
SPX2931AM1-3.5/TR 2%
3.3V
3.5V
3.5V
SPX2931AN-3.3
SPX2931AN-3.3/TR
SPX2931AN-3.5
SPX2931AN-3.5/TR
SPX2931M1-3.3
SPX2931M1-3.3/TR
SPX2931M1-3.5
SPX2931M1-3.5/TR
SPX2931N-3.3
2%
2%
2%
2%
3%
3%
3%
3%
3%
3%
3%
3%
3.3V
3.3V
3.5V
3.5V
3.3V
3.3V
3.5V
3.5V
3.3V
SPX2931N-3.3/TR
SPX2931N-3.5
3.3V
3.5V
SPX2931N-3.5/TR
3.5V
Available in lead free packaging. To order add "-L" suffix to part number.
Example: SPX2931AN-3.3/TR = standard; SPX2931AN-L-3.3/TR = lead free
/TR = Tape and Reel
Pack quantity is 2,000 for TO-92 and 2,500 for SOT-89.
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: 05/25/04
SPX2931 100mA Low Dropout Voltage Regulator
© Copyright 2004 Sipex Corporation
8
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