SPX116
Low Dropout Voltage Three Terminal Regulator
Rev. 8/21/01
SPX116 Low Dropout Voltage Three Terminal Regulator
Copyright 2001 Sipex Corporation
1
FEATURES
APPLICATION
3.3V and 3.5V Versions
Portable Instrumentation
Output Current in Excess of 100 mA
Cordless Telephones
Input-Output Differential of 0.3V at 100mA
Radio Control Systems
Mirror-Image Insertion Protection
Battery Powered Systems
Internal Thermal Protection
Portable Consumer Devices
Available in TO-92 and SOT-89 Packages
Pagers
Reverse Battery, Internal Short Circuit, Reverse Transient and
Load Dump Protection
Cellular Phones
Low Voltage Systems
Output Accuracy at 25
o
C
Direct Replacement for TK116
PRODUCT DESCRIPTION
The SPX116 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 portable computers. The SPX116 features offers very low quiescent currents
(0.4 mA), and very low drop output voltage (50 mV at light load and 300 mV at 100 mA). The SPX116 is a direct replacement for the
TK116. The SPX116 is offered in a 3-pin TO-92 and SOT-89 package.
TYPICAL APPLICATION
SPX116
V
IN
C
1
V
OUT
1
F
4.7
F
Gnd
SPX116
Rev. 8/21/01
SPX116 Low Dropout Voltage Three Terminal Regulator
Copyright 2001 Sipex Corporation
2
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONSITIONS
Power Dissipation (note 3) Internally limited
Input Supply Voltage Range ............................. 3.0 to 26V
Lead Temp. (soldering, 5 Seconds)...................... 260C
Maximum Load Current ....................................... 180mA
Storage Temperature Range ................. -65C to +150C
Operating Junction Temperature Range........... -40
o
C to 125
o
C
Maximum Junction Temperature....................... +125C
TO-92
JA
.........................................................160
o
C/W
Input Supply Voltage Range.......................-0.3 to +30V
SOT-89
JA
.......................................................110
o
C/W
ESD Rating (note 4) ............................................ 2kV
ELECTRICAL CHARACTERISTICS
at V
IN
=6V, T
A
= 25C, I
O
= 1mA, C
OUT
= 4.7
F, unless otherwise specified.
( Note 1)
Parameter
Conditions
SPX116
Units
Min
Typ
Max
Output Voltage (note 2)
4V < V
IN
< 14V, I
O
= 10 mA.
3.201
3.300
3.399
V
Output Voltage (note 2)
4V < V
IN
< 14V, I
O
= 10 mA.
3.395
3.500
3.605
V
Line Regulation
9V < V
IN
< 14V
4.5V < V
IN
< 14V,
4.0
mV
Load Regulation
10 mA < I
O
< 100 mA
14
mV
Dropout Voltage
I
O
=10 mA
I
O
=100 mA
0.05
0.3
V
Quiescent Current
I
O
< 10 mA, 4.5V < V
IN
< 26V
I
O
= 100 mA, V
IN
= 14V,
0.4
15
mA
Output Noise Voltage
10Hz-100kHz, C
OUT
=100
F
500
Vrms
Ripple Rejection
F
O
= 120Hz
80
dB
Maximum Operational Input
Voltage
14
V
Current Limit
150
400
mA
Note 1: See
TYPICAL APPLICATIONS
notes to ensure constant junction temperature, low duty cycle pulse testing used.
Note 2: All limits are at 25
C; operation is guaranteed over the full operating 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, 100 pF discharged through 1.5 k
.
SPX116
Rev. 8/21/01
SPX116 Low Dropout Voltage Three Terminal Regulator
Copyright 2001 Sipex Corporation
2
Q
UIESCENT CURRENT (mA)
0
0
OUTPUT CURRENT (mA)
30
60
90
5
10
15
20
25
30
V
IN
= 14V
INPUT OUTPUT DIFFERENTIAL (V)
0.6
0.5
0.2
0
JUNCTION TEMPERATURE (C)
0.4
0.3
0.1
0
40
80
120
I
O
= 150mA
I
O
= 50mA
I
O
= 10mA
INPUT OUTPUT DIFFERENTIAL (V)
0.4
0.2
OUTPUT CURRENT (mA)
0.3
0.1
0
0
50
100
0.5
0.6
OUTPUT CURRENT (mA)
800
500
0
INPUT VOLTAGE (V)
200
100
10
20
300
400
30
0
T
J
= 25C
T
J
= 85C
T
J
= -40C
25
6
4
0
-40
0
80
120
JUNCTION TEMPERATURE (
C)
Q
UIESCENT CURRENT (mA)
10
15
20
2
~
~
~
~
40
I
O
= 0mA
I
O
= 50mA
I
O
=100mA
6.0
3.0
2.0
1.0
2.0
3.0
4.0
5.0
6.0
INPUT VOLTAGE (V)
OUTPUT V
O
L
T
A
GE
(V)
4.0
5.0
SPX116 3.5
I
O
= 100 mA
TYPICAL CHARACTERISTICS
Figure 3. Dropout Voltage
Figure 5. Peak Output Current
Figure 4. Dropout Voltage
Figure 1. Quiescent Current
Figure 2. Quiescent Current
Figure 6. Low Voltage Behavior
SPX116
Rev. 8/21/01
SPX116 Low Dropout Voltage Three Terminal Regulator
Copyright 2001 Sipex Corporation
3
TYPICAL CHARACTERISTICS
Continued
1.0
0
20
40
50 60
AMBIENT TEMPERATURE (C)
PO
WER DISSIP
A
TION (W)
0.9
0.8
0.7
0.6
0.5
0.4
0.1
0.3
0.2
0
10
30
70
80
90
0.125" LEAD LENGTH
FROM PC BOARD
0.4" LENGTH
FROMPC BOARD
Figure 7. Maximum Power Dissipation (SOT89)
Figure 8. Maximum Power Dissipation (TO-92)
Figure 9. Output Impedance
Figure 10. Operation During Load Dump
0.0
0 10 20
40
70 80
AMBIENT TEMPERATURE (C)
PO
WER DISSIP
A
TION (W)
30
50 60
90
0.4
0.8
1.2
1.6
2.0
10
1
0.1
0
30
60
90
120
150
FREQUENCY (Hz)
0.01
5.0V
I
O
= 10mA
OUTPUT IMPED
ANCE (
)
OPERATION DURING LOAD DUMP
TIME (ms)
OUTPUT
V
O
L
T
A
GE (V)
400
200
100
-100
30
10
0
6
4
-2
2
0
0
300
~
~
20
40
50
60
70
500
OUTPUT
V
O
L
T
A
GE (V)
~
~
C
O
= 100
F
R
L
= 500
SPX116
Rev. 8/21/01
SPX116 Low Dropout Voltage Three Terminal Regulator
Copyright 2001 Sipex Corporation
4
APPLICATION INFORMATION
The SPX116 requires an output capacitor for device stability.
The value required varies greatly depending upon the
application circuit and other 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 determine the proper capacitor
type and value. Stability can be obtained with a tantalum or
ceramic capacitor value of 4.7
F or greater.
Another critical point of electrolytic characteristics is its
performance over temperature. The SPX116 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
temperature range.
In most applications the SPX116 is operating at few
milliamps. In these applications the output 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.
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 minimum of 0.6 volts required at the input
of regulator above the output to keep the power dissipation
and die heating to its minimum. After the value for the
capacitor has been determined for actual use, the value
should be doubled.
SPX116
Rev. 8/21/01
SPX116 Low Dropout Voltage Three Terminal Regulator
Copyright 2001 Sipex Corporation
5
Bottom View
TO-92 (N)
SOT-89 (M1)
Top View
1
2
3
V
IN
GND
V
OUT
1
3
2
GND
V
IN
V
OUT
PACKAGE PINOUTS
ORDERING INFORMATION
Part Number
Accuracy
Output Voltage
Package
SPX116M1-3.3
3%
3.3V
3 lead SOT-89
SPX116M1-3.5
3%
3.5V
3 lead SOT-89
SPX116N-3.3
3%
3.3V
3 lead TO-92
SPX116N-3.5
3%
3.5V
3 lead TO-92
SIGNAL PROCESSING EXCELLENCE
Sipex Corporation
Headquarters and Main Offices:
22 Linnell Circle
Billerica, MA 01821
TEL: (978) 667-8700
FAX: (978) 670-9001
e-mail: sales@sipex.com
233 South Hillview Drive
Milpitas, CA 95035
TEL: (408) 935-7600
FAX: (408) 934-7500
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
hereing; neither does it convey any license under its patent rights nor the rights of others.
Corporation
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