Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LM317M
LINEAR INTEGRATED CIRCUIT
MEDIUM CURRENT 1.2V TO
37V ADJUSTABLE VOLTAGE
REGULATOR

DESCRIPTION
The UTC LM317M is an adjustable 3-terminal positive
voltage regulator, designed to supply 500mA of output current
with voltage adjustable from 1.2V ~ 37V.

FEATURES
*Output Voltage Adjustable From 1.2V ~ 37V
*Output Current In Excess of 500mA
*Internal Thermal Overload Protection
*Internal Short Circuit Current Limiting
*Output Transistor Safe Area Compensation

ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LM317MG-AA3-R
LM317ML-TA3-T
LM317MG-TA3-T
LM317ML-TN3-R
LM317MG-TN3-R
LM317ML-TQ2-T
LM317MG-TQ2-T
LM317ML-TQ2-R
LM317MG-TQ2-R
LM317MG-S08-R
Note: Pin Assignment: I:VIN O:VOUT
x: NC
www.unisonic.com.tw
Copyright © 2014 Unisonic Technologies Co., Ltd
Package
SOT-223
TO-220
TO-252
TO-263
TO-263
SOP-8
1
ADJ
ADJ
ADJ
ADJ
ADJ
I
2
O
O
O
O
O
O
Pin Assignment
3
4
5
6
I
I
I
I
I
O ADJ x
O
7
O
8
x
Packing
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tape Reel
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LM317M

LINEAR INTEGRATED CIRCUIT
MARKING
PACKAGE
MARKING
SOT-223
TO-220
TO-252
TO-263
8
6
5
UTC
LM317MG
SOP-8
1

7
2
3
4
Date Code
Lot Code
BLOCK DIAGRAM
INPUT
VREF
VADJ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
PROTECTION
CIRCUIT
OUTPUT
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LM317M

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Input-Output Voltage Differential
VIN-VOUT
40
V
Power Dissipation
PD
Internally Limited
W
Junction Temperature
TJ
+125
°C
Operating Temperature
TOPR
-40 ~ +85
°C
Storage Temperature
TSTG
-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.

THERMAL DATA
PARAMETER
Junction to Ambient
Junction to Case

SYMBOL
SOT-223
SOP-8
TO-220/TO-263
TO-252
SOT-223
SOP-8
TO-220/TO-263
TO-252
θJA
θJC
RATINGS
165
175
65
112
24
27
5.5
13
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(VIN-VOUT=5V, IOUT=0.1A, TA=25°C, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
Line Regulation
VOUT/VOUT 3V≦VIN-VOUT≦40V
VOUT≦5V
Load Regulation
VOUT 10mA≦IOUT≦0.5A
VOUT≧5V
Adjustable Pin Current
IADJ
Adjustable Pin Current Change
IADJ
Reference Voltage
VREF
Temperature Stability
Minimum Load Current for Regulation
Maximum Output Current
RMS Noise vs. %of VOUT
3V≦VIN-VOUT≦40V,
10mA≦IOUT≦0.5A, PD＜7.5W
3V≦VIN-VOUT≦40V,
10mA≦IOUT≦0.5A, PD＜7.5W
TMIN≦TJ≦TMAX
VIN-VOUT=40V
VIN-VOUT=40V, PD≦7.5W
10HZ≦f≦10KHZ
CADJ=0
Ripple Rejection
RR
VOUT=10V,f=120HZ
CADJ=10F
Note: CADJ is connected between Adjust pin and Ground.
IL(MIN)
IO(MAX)
eN
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
MIN
1.20
0.1
66
TYP MAX
0.01 0.04
5
25
0.1
0.5
50
100
UNIT
%/V
mV
%
μA
0.2
5
μA
1.25
1.30
V
0.7
3.5
0.2
0.003
65
80
10
%/VOUT
mA
A
%/VOUT
dB
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LM317M

LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUITS
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
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LM317M
LINEAR INTEGRATED CIRCUIT
TYPICAL CHARACTERISTICS

Load Regulation vs. temperature
Adjustment Current vs. Temperature
60
0.0
Adjustment Current, IADJ (μA)
Output Voltage Deviation, ∆VOUT (%)
0.2
-0.2
-0.4
-0.6
-0.8
VIN=15V
VOUT=10V
-1.0
0
25
50
75
100
55
50
45
40
35
-50
125
0
25
50
75
100
125
Temperature
Output Current, IOUT (A)
Min Output Current, IOUT (mA)
Temperature
-25
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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