Solved by
SP317L
TM
3-Terminal Adjustable Voltage Regulator
Features
·
·
·
·
·
·
·
·
Adjustable Output Down to 1.2V
Guaranteed 100mA Output Current
Output Short Circuit Protected
Line Regulation: 0.01%/V
Load Regulation: 0.1%
Current Limit Constant with Temperature
70 dB Ripple Rejection
Available in Lead Free, RoHS Compliant
Package
NSOIC-8
Package
V
IN
V
OUT
V
OUT
ADJ
2
3
8
7
6
NC
V
OUT
V
OUT
NC
Applications
·
·
·
·
High Efficiency Linear Regulators
Post Regulation for Switching Supplies
Microprocessor Power Supply
Mother Board I/O Power Supply
general Description
The SP317L is an adjustable 3-terminal positive voltage regulator capable of supplying 100mA over a 1.2V
to 12V output range. This voltage regulator is exceptionally easy to use and requires only two external
resistors to set the output voltage. Both line and load regulation are better than standard fixed regulators.
In addition to higher performance than fixed regulators, SP317L employs overload protection. Included on
the chip are current limiting and thermal overload protection. All overload protection circuitry remains fully
functional even when the adjustment terminal is disconnected.
The SP317L is available in standard TO-92 and NSOIC-8 packages.
TO-92
NSOIC-8
Figure . Package Types of SP317L
Date: 8//06 Rev H
SP37L 3-Terminal 00mA Adjustable Voltage Regulator
© 2006 Sipex Corporation
Pin Configuration
N1
Package
(TO-92)
V
IN
V
OUT
V
OUT
ADJ
N Package
(Narrow SOIC-8)
2
3
8
7
6
NC
V
OUT
V
OUT
NC
3
2
1
V
IN
V
OUT
ADJ
Top View
Figure 2. Pin Configuration of S
P317L
Functional Block Diagram
V
IN
ADJ
V
OUT
Figure 3. Functional Block Diagram of S
P317L
Date: 8//06 Rev H
SP37L 3-Terminal 00mA Adjustable Voltage Regulator
© 2006 Sipex Corporation
2
Absolute maximum Ratings (Note 1)
Parameter
Input Voltage
Input-Output Voltage Differential
Operating Junction Temperature Range
Storage Temperature Range
Power Dissipation
Lead Temperature (Soldering, 4 sec.)
ESD (Machine Model)
T
J
T
STG
P
D
T
LEAD
ESD
Symbol
V
IN
Value
20
15
150
-65 to 150
700
260
250
Unit
V
V
o
o
C
C
mW
o
C
V
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the
device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond
those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum
Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Input Voltage
Operating Junction Temperature Range
Symbol
V
IN
T
J
0
Min
Max
15
125
Unit
V
o
C
Date: 8//06 Rev H
SP37L 3-Terminal 00mA Adjustable Voltage Regulator
© 2006 Sipex Corporation
3
Electrical Characteristics
o
C
T
J
125
o
C, V
IN
-V
OUT
= 5V, I
OUT
= 40mA, P
D
Symbol
mW, unless otherwise specified.
Min
15V
20mA
Typ
0.01
0.02
0.1
0.3
0.04
50
Max
0.04
0.07
0.5
1.5
0.2
100
5
1.30
300
5
Unit
%/V
%/V
%
%
%/W
A
A
V
mA
mA
dB
%
1
%
%
o
Parameter
Conditions
T
J
= 25
o
C, 3V (V
IN
-V
OUT
)
I
L
20mA (Note 2)
3V (V
IN
-V
OUT
)
(Note 2)
T
J
= 25
o
C, 5mA
(Note 2)
5mA
I
OUT
15V, I
L
I
OUT
Line Regulation
Reg
LINE
100mA
Load Regulation
Thermal Regulation
Adjust Pin Current
Adjust Pin Current
Change
Reference Voltage
Current Limit
Minimum Load Cur-
rent
Ripple Rejection
Temperature Stability
Long Term Stability
RMS Output Noise,
% of V
OUT
Thermal Resistance
Junction to Case
Reg
LOAD
100mA (Note 2)
T
J
= 25
o
C, 10ms Pulse
5mA I
L
100mA
3V (V
IN
-V
OUT
) 15V
V
REF
I
LIMIT
3V (V
IN
-V
OUT
) 15V
5mA I
OUT
100mA
3V (V
IN
-V
OUT
)
3V (V
IN
-V
OUT
)
13V
13V
1.20
100
0.2
1.25
200
3.5
62
60
70
0.65
0.3
z
0.003
185
175
V
OUT
= 10V, f = 120Hz, C
ADJ
= 0 F
V
OUT
= 10V, f = 120Hz, C
ADJ
= 10 F
0
o
C
J
o
C
T
J
=125
o
C, 1000 Hours
T
J
= 25
o
C, 10Hz
TO-92
NSOIC-8
f
C/W
Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle.
Changes in output voltage due to heating effects are covered under the specification of thermal regulation.
Date: 8//06 Rev H
SP37L 3-Terminal 00mA Adjustable Voltage Regulator
© 2006 Sipex Corporation
Typical Performance Characteristics
0.06
.2
0.0
.20
Output Voltage Deviation (V)
0.02
Output Voltage (V)
I
O
=0mA
.23
0.00
.230
-0.02
I
O
=00mA
S
P317L
V
IN
=0.2V
V
OUT
=.2V
-
-2
0
2
0
o
.22
-0.0
.220
S
P317L
I
O
=0mA
-0.06
7
00
2
.2
8
0
2
6
8
20
Temperature ( C)
Input Voltage (V)
Figure . Load Regulation vs. Temperature
Figure . Output Voltage vs. Input Voltage
.26
.260
I
O
=0mA
2
I
O
=0mA
Reference Voltage(V)
Adjust Pin Current ( A)
.2
.20
.2
.20
.23
.230
-
I
O
=00mA
0
I
O
=00mA
8
S
P317L
V
IN
=0.2V
V
OUT
=.2V
-2
0
2
0
O
6
SP317L
V
IN
=0.2V
V
OUT
=.2V
7
00
2
2
Temperature( C)
-
-2
0
2
0
o
7
00
2
Temperature ( C)
Figure 6. Reference Voltage vs. Temperature
Figure 7. Adjustment Current vs. Temperature
Date: 8//06 Rev H
SP37L 3-Terminal 00mA Adjustable Voltage Regulator
© 2006 Sipex Corporation
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