UNISONIC TECHNOLOGIES CO., LTD
LM317L
LOW CURRENT 1.25V TO
37V ADJUSTABLE VOLTAGE
REGULATOR
DESCRIPTION
LINEAR INTEGRATED CIRCUIT
The UTC
LM317L
is a monolithic integrated circuit,
designed to supply 100mA of output current with voltage
adjustable from 1.25V ~ 37V.
FEATURES
*Output voltage adjustable from 1.25V ~ 37V.
*Output current in excess of 100mA
*Internal thermal overload protection
*Internal short circuit current limiting
*Output transistor safe area compensation
ORDERING INFORMATION
1
A
A
A
I
I
2
O
O
O
O
O
Pin Assignment
3 4 5 6
I - - -
I - - -
I - - -
O A N O
O A N O
Packing
7 8
- - Tape Reel
- - Tape Box
- -
Bulk
O N Tape Reel
O N
Tube
Ordering Number
Package
Lead Free
Halogen Free
-
LM317LG-AB3-R
SOT-89
LM317LK-T92-B
LM317LG-T92-B
TO-92
LM317LK-T92-K
LM317LG-T92-K
TO-92
-
LM317LG-S08-R
SOP-8
-
LM317LG-S08-T
SOP-8
Note: Pin Assignment: A: ADJ
I: V
IN
O: V
OUT
N: No Connection
LM317LG-AB3-R
(1)Packing Type
(2)Package Type
(3)Green Package
(1) B: Tape Box, K: Bulk, R: Tape Reel, T: Tube
(2) AB3: SOT-89, T92: TO-92, S08: SOP-8
(3) K: Lead Free, G: Halogen Free and Lead Free
MARKING
SOT-89
8
7
6
SOP-8
5
TO-92
UTC
LM317LG
1
2
3
4
Date Code
Lot Code
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
1 of 5
QW-R101-008.G
LM317L
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
INPUT
V
REF
PROTECTION
CIRCUIT
OUTPUT
V
ADJ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R101-008.G
LM317L
ABSOLUTE MAXIMUM RATINGS
LINEAR INTEGRATED CIRCUIT
PARAMETER
SYMBOL
RATING
UNIT
Input-Output Differential Voltage
V
IN
-V
OUT
40
V
Power Dissipation
P
D
Internally Limited
Junction Temperature
T
J
+125
C
Operating Junction Temperature
T
OPR
-40 ~ +85
C
Storage Temperature Range
T
STR
-40 ~ +150
C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
MIN
TYP
0.01
5
0.1
50
0.2
1.20
1.25
0.7
3.5
15
0.003
65
80
MAX
0.04
25
0.5
100
5
1.30
UNIT
%/V
mV
%
A
A
V
%/V
OUT
(V
IN
-V
OUT
=5V, I
OUT
=40mA, Ta=25C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
Line Regulation
V
OUT
/V
OUT
3V
≦
V
IN
-V
OUT
≦
40V, I
LOAD
<20mA
V
OUT
≦5V
Load Regulation
V
OUT
5mA
≦
I
OUT
≦
100mA
V
OUT
≧5V
Adjustable Pin Current
Adjustable Pin Current Change
Reference Voltage
Temperature Stability
Minimum Load Current for Regulation
Maximum Output Current
RMS Noise vs. %of V
OUT
I
ADJ
I
ADJ
V
REF
3V
≦
V
IN
-V
OUT
≦
40V,
5mA
≦
I
OUT
≦
100mA, P
D
＜625mW
3V
≦
V
IN
-V
OUT
≦
40V,
5mA
≦
I
OUT
≦
100mA, P
D
＜625mW
T
MIN
≦T
J
≦T
MAX
V
IN
-V
OUT
=40V
V
IN
-V
OUT
<40V，P
D
<625mW
10H
Z
≦
f
≦
10KH
Z
C
ADJ
=0
Ripple Rejection
RR
V
OUT
=10V,f=120H
Z
,
C
ADJ
=10F
Note: C
ADJ
is connected between Adjust pin and Ground.
I
L(MIN)
I
O(MAX)
eN
10
mA
mA
66
0.01
%/V
OUT
dB
dB
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R101-008.G
LM317L
APPLICATION CIRCUITS
LINEAR INTEGRATED CIRCUIT
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R101-008.G
LM317L
TYPICAL CHARACTERISTICS
Load Regulation vs. temperature
0.2
LINEAR INTEGRATED CIRCUIT
Adjustment Current vs. Temperature
60
Output Voltage Deviation,
∆V
OUT
(%)
Adjustment Current, I
ADJ
(μA)
125
0.0
-0.2
-0.4
-0.6
-0.8
-1.0
0
25
50
75
100
V
IN
=15V
V
OUT
=10V
55
50
45
40
35
-50
-25
0
25
50
75
100
125
Temperature
Temperature
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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QW-R101-008.G
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