Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LM317
LINEAR INTEGRATED CIRCUIT
HIGH CURRENT 1.3V TO 37V
ADJUSTABLE VOLTAGE
REGULATOR

1
TO-220
DESCRIPTION
1
TO-263-3
TO-263
1
1
SOT-223
TO-252
FEATURES
*Output voltage adjustable from 1.3V ~ 37V
*Output current in excess of 1A
*Internal short circuit protection.
*Internal over temperature protection.
*Output transistor safe area compensation

TO-220F
1
The UTC LM317 is an adjustable 3-terminal positive voltage
regulator, designed to supply 1A of output current with voltage
adjustable from 1.3V ~ 37V.

1
21
TO-3
SOP-8
ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
LM317G-AA3-R
LM317K-TA3-T
LM317G-TA3-T
LM317K-TF3-T
LM317G-TF3-T
LM317K-TN3-R
LM317G-TN3-R
LM317K-TQ2-R
LM317G-TQ2-R
LM317K-TQ2-T
LM317G-TQ2-T
LM317K-TQ3-R
LM317G-TQ3-R
LM317K-TQ3-T
LM317G-TQ3-T
LM317K-T30-Y
LM317G-T30-Y
LM317K-T30-A-Y
LM317G-T30-A-Y
LM317G-S08-R
Note: 1. Pin Assignment: I: VIN O: VOUT
2. Pin 3 on TO-3 is case
Package
SOT-223
TO-220
TO-220F
TO-252
TO-263
TO-263
TO-263-3
TO-263-3
TO-3
TO-3
SOP-8
LM317L-T30-Y-R
1
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
ADJ
I
ADJ
I
Pin Assignment
2
3
4
5
6
O
I
O
I
O
I
O
I
O
I
O
I
O
I
O
I
ADJ O
I
O
O
O ADJ NC O
7
O
8
NC
Packing
Tape Reel
Tube
Tube
Tape Reel
Tape Reel
Tube
Tape Reel
Tube
Tray
Tray
Tape Reel
(1) R: Tape Reel, T: Tube, Y: Tray
(1)Packing Type
(2) refer to Pin Assignment
(2)Pin Assignment
(3) AA3: SOT-223, TA3: TO-220, TF3: TO-220F,
(3)Package Type
(4)Green Package
www.unisonic.com.tw
Copyright © 2016 Unisonic Technologies Co., Ltd
TN3: TO-252, TQ2: TO-263, TQ3: TO-263-3
T30: TO-3, S08: SOP-8
(4) G: Halogen Free and Lead Free, K: Lead Free
1 of 5
QW-R101-009.P
LM317

LINEAR INTEGRATED CIRCUIT
MARKING
PACKAGE
MARKING
SOT-223
TO-220
TO-220F
TO-252
TO-263
TO-263-3
TO-3
SOP-8

PIN CONFIGURATION
For TO-3

BLOCK DIAGRAM
INPUT
VREF
VADJ
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
PROTECTION
CIRCUIT
OUTPUT
2 of 5
QW-R101-009.P
LM317

LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS (TA=25C, unless otherwise specified)
PARAMETER
SYMBOL
RATINGS
UNIT
Input - Output Voltage Difference
VIN-VOUT
40
V
Power Dissipation
PD
Internal limited
Junction Temperature
TJ
+125
C
Operating Temperature
TOPR
-40 ~ +85
C
Storage Temperature
TSTG
-40 ~ +150
C
Note: Absolute maximum ratings are stress ratings only and functional device operation is not implied. The device
could be damaged beyond Absolute maximum ratings.

THERMAL DATA
PARAMETER
TO-252
TO-220/TO-220F
TO-263/TO-263-3
Junction-to-Ambient
SOT-223
TO-3
SOP-8
TO-252
TO-220/TO-263
TO-263-3
Junction-to-Case
TO-220F
SOT-223
TO-3
SOP-8

SYMBOL
RATINGS
112
UNIT
65
θJA
C/W
165
35
190
12
5
θJC
C/W
7.8
23
3
4.5
ELECTRICAL CHARACTERISTICS
(VIN-VOUT=5V, IOUT=10mA, 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≦1A
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
Ripple Rejection
MIN
IL(MIN)
IO(MAX)
eN
RR
3V≦VIN-VOUT≦40V,
10mA≦IOUT≦1A, PD≦20W
3V≦VIN-VOUT≦40V,
10mA≦IOUT≦1A, PD≦20W
TMIN≦TJ≦TMAX
VIN-VOUT=40V
VIN-VOUT=40V, PD≦20W
10HZ≦f≦10KHZ
VOUT=10V,f=120HZ
1.20
0.2
CADJ=0
CADJ=10μF
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
0.3
0.003
65
80
10
%/VOUT
mA
A
%/VOUT
dB
Note: CADJ is connected between Adjust pin and Ground.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 5
QW-R101-009.P
LM317

LINEAR INTEGRATED CIRCUIT
APPLICATION CIRCUITS
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
4 of 5
QW-R101-009.P
LM317
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
125
Temperature
55
50
45
40
35
-50
-25
0
25
50
75
100
125
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
5 of 5
QW-R101-009.P