Features Output Current in Excess of 100mA Output Adjustable
Between 1.2V and 37V Internal Thermal Overload Protection Internal
Short Circuit Current Limiting Output Transistor Safe Area
Compensation Floating Operation For High Voltage Applications
DescriptionThe LM317L is a 3-terminal adjustable positive
voltageregulator capable of supplying in excess of 100mA over
anoutput voltage range of 1 .2V to 37V. This voltage regulatoris
exceptionally easy to use and requires only two externalresistors
to set the output voltage.
TO-92
1. Adj 2. Output 3. Input1
1
8-SOP
1. Input 2.3.6.7. Output4. Adj 5.8. NC
Internal Block Diagram
Rlimit
3Vin
Vo
1
VoltageReference
Vadj
2
ProtectionCircuitry
+
-
Input
Output
LM317L3-Ter m ina l 0 .1A Pos i t ive Ad jus t ab le Regu la t o
r
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LM317L
3
Typical Application
Figure 1. 5V Electronic Shutdown Regulator
D1 protects the device during an input short circuit.
Figure 2. Slow Turn-On Regulator
Figure 3. Current Regulator
LM317LInput
Output
LM317LInput Output
LM317LInput
Output
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LM317L
4
Mechanical Dimensions
Package
0.46 0.10
1.27TYP
(R2.29)
3 . 8
6 M A X
[1.27 0.20 ]1.27TYP
[1.27 0.20 ]
3.60 0.20
1 4
. 4 7
0
. 4 0
1 . 0
2 0
. 1 0
( 0 . 2
5 )
4 . 5
8 0
. 2 0
4.58 +0.25 0.15
0.38 +0.10 0.05
0 . 3
8 +
0 . 1
0
0
. 0 5
TO-92
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LM317L
5
Mechanical Dimensions (Continued)
Package
8-SOP
4 . 9
2 0
. 2 0
0 . 1
9 4
0
. 0 0 8
0 . 4
1 0
. 1 0
0 . 0
1 6
0
. 0 0 4
1 . 2
7
0 . 0
5 0
5.720.225
1.55 0.20
0.061 0.008
0.1~0.25
0.004~0.001
6.00 0.300.236 0.012
3.95 0.20
0.156 0.008
0.50 0.20
0.020 0.008
5 . 1
3
0 . 2
0 2 M
A X
#1
#4 #5
0 ~ 8
#8
0 . 5
6
0 . 0
2 2
(
)
1.800.071
M A X 0
. 1 0
M A X 0
. 0 0 4
MAX
MIN
+ 0 . 1 0
- 0 . 0 5
0 . 1 5
+ 0 . 0 0 4
- 0 . 0 0 2
0 . 0 0 6
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Ordering InformationProduct Number Package Operating
Temperature
LM317LZ TO-920C to + 125 C
LM317LM 8-SOP
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7
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LM317L
3/5/02 0.0m 001Stock#DSxxxxxxxx
2002 Fairchild Semiconductor Corporation
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in accordance withinstructions for use provided in the labeling,
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theuser.
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or system whose failure to perform can bereasonably expected to
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