LM317
3-TERMINAL 1.5A POSITIVE
ADJUSTABLE VOLTAGE REGULATOR
DESCRIPTION
The LM317 is an adiustable 3-terminal positlve voltage regulator
desjgned to supply more than 1.5A of Output current with voltage
adjustable from 1.3V-37V.
FEATURES
Output current up to 1.5A
Output voltage adjustable from 1.3V to 37V
Intemal short circuit protection
Intemal over temperature protection
Safe-area compensation for output transistor
PIN DESCRIPTION
(SOT-223)PACKAGE
(TO-220)PACKAGE
(TO-252)PACKAGE
(TO-263)PACKAGE
http://www.hgsemi.com.cn
1
2019 OCT
LM317
ABSOLUTE MAXIMUM RATINGS
(Ta=25℃，
UNLESS OTHERWISE SPECIFIED)
PARAMETERS
Input-Output Voltage Difference
Lead Temperature
Power Dissipation
Operating Temperature Range
Storage Temperature Range
ELECTRICAL CHARACTERISTICS
SYMBOL
V
I
-V
O
T
LEAD
P
D
T
OPR
T
STG
RATING
40
260
Intemal Limited
0~+125
-60~+150
UNITS
V
℃
-
℃
℃
(VI-VO=5V,0<Tj<125℃，
IO=500mA,Imax=1.5A,Pmax=20W,UNLESS OTHERWISE SPECIFIED)
PARAMETER
Line regulation
SYMBOL
△V
O
△V
O
TEST CONDLTLONS
Ta=25℃，3V≤V
I
-V
O
≤40V
Ta=0-125℃，
3V≤V
I
-V
O
≤40V
Ta=25℃
10mA≤IO≤Imax
10mA≤IO≤Imax
V
O
≤6V
V
O
≤5V
V
O
≤5V
V
O
≤5V
MIN
TYP
0.01
0.02
18
0.4
40
0.8
46
MAX
0.04
0.07
25
0.5
70
1.5
100
5
1.3
UNIT
%/V
mV
%/Vo
mV
%/Vo
uA
uA
V
%/Vo
Load Regulation
△V
O
Adjustable Pin Current
Adjustable Pin Current
Change
Reference Voltage
Temperature Stability
Minimum Load Current
for regulation
Maximum output Current
RMS Noise v.s.%of Vout
Ripple Rejection
Load-term
Stability,Tj=T
HIGH
I
ADJ
△I
ADJ
V
REF
STT
I
L(MIN)
I
O(MAX)
eN
RR
ST
2.5V≤V
I
-V
O
≤40V,
10mA≤I
O
≤Imax,P
D
≤Pmax
3V≤V
I
-V
O
≤40V,
10mA≤I
O
≤Imax,P
D
≤Pmax
,
V
I
-V
O
=40V
V
I
-V
O
=15V,P
D
≤Pmax
1.5
1.2
2.0
1.25
0.7
3.5
2.2
0.4
0.003
60
66
75
0.3
10
mA
A
V
I
-V
O
=15V,P
D
≤Pmax,Ta=25℃
0.15
Ta=25℃,10Hz≤F≤10KHz
V
O
=10V,F=120Hz,Cadj=0
V
O
=10V,F=120Hz,Cadj=10uF
0.01
%/Vo
dB
Ta=25℃,1000 hr
1
%
Note:Testing with low duty pulse should be used to avoid heating effect.
http://www.hgsemi.com.cn
2
2019 OCT
LM317
Important statement:
Huaguan Semiconductor Co,Ltd. reserves the right to change
the products and services provided without notice. Customers
should obtain the latest relevant information before ordering,
and verify the timeliness and accuracy of this information.
Customers are responsible for complying with safety
standards and taking safety measures when using our
products for system design and machine manufacturing to
avoid potential risks that may result in personal injury or
property damage.
Our products are not licensed for applications in life support,
military, aerospace, etc., so we do not bear the consequences
of the application of these products in these fields.
Our documentation is only permitted to be copied without
any tampering with the content, so we do not accept any
responsibility or liability for the altered documents.
http://www.hgsemi.com.cn
3
2019 OCT
Power technology
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