3-TERMINAL 1A POSITIVE ADJUSTABLE VOLTAGE REGULATOR
LM317
TO-220
Plastic Package
APPLICATIONS
The voltages available allow these Regulators to be used in Logic Systems, Instrumentation, Hi-Fi Audio
Circuits and other Solid State Electronic Equipment
FEATURES
Internal Short Circuit Protection and Internal Over Temperature Protection
ABSOLUTE MAXIMUM RATINGS (T
a
=25ºC)
DESCRIPTION
UNIT
Input Output Voltage Difference V
Lead Temperature ºC
Power Dissipation
Operating Temperature Range ºC
Storage Temperature Range
ºC
ELECTRICAL CHARACTERISTICS
V
I
-V
O
=5V, 0ºC <T
J
<125ºC, I
O
=500mA, (Max=1.5A, P
max
=20W, unless specified otherwise)
DESCRIPTION SYMBOL TEST CONDITION MIN TYP MAX UNIT
Line Regulation
∆V
O
T
a
=25ºC, 3V<=V
I
-V
O
<=40V
0.04 %/V
T
a
=0 -125ºC, 3V<=V
I
-V
O
<=40V
0.07 %/V
Load Regulation
∆V
O
T
a
=25ºC, V
O
<=6V
25 mV
10mA<=I
O
<=IMAX V
O
>=5V
0.5 %/VO
10mA<=I
O
<=IMAX V
O
<=5V
70 mV
V
O
>=6V
1.5 %/VO
Adjustable Pin Current
IA
DJ
100
µA
Adjustable Pin Current Change
∆IA
DJ
2.5V<=V
I
-V
O
<=40V,
10mA<=1
O
<=IMAX,
P
D
<=PMAX
5.0
µA
Reference Voltage
V
REF
3V<=V
I
-V
O
<=40V, 10mA<=1
O
<=IMAX, P
D
<=PMAX
1.2 1.3 V
Temperature Stability
S
TT
0.7 %/VO
Minimum Load Current for Regulation
I
L(min)
V
I
-V
O
=40V
10 mA
LM317Rev110205E
P
D
Internal Limited
- 65 ~150
0 ~ 125
T
stg
T
amb
230
VALUE
40
V
I
-
V
O
SYMBOL
T
lead
Continental Device India Limited
Data Sheet Page 1 of 4
An ISO/TS 16949, ISO 9001 and ISO 14001 Certified Company
3-TERMINAL 1A POSITIVE ADJUSTABLE VOLTAGE REGULATOR LM317
TO-220
Plastic Package
ELECTRICAL CHARACTERISTICS
V
I
-V
O
=5V, 0ºC <T
J
<125ºC, I
O
=500mA, (Max=1.5A, P
max
=20W, unless specified otherwise)
DESCRIPTION SYMBOL TEST CONDITION MIN TYP MAX UNIT
Maximum Output Current
I
O(max)
V
I
-V
O
=15V, P
D
<=PMAX
1.5 A
V
I
-V
O
=40V, P
D
<=PMAX,
T
a
=25ºC
0.15 A
RMS Noise V.S% of Vout
eN
T
a
=25ºC, 10Hz<= f<=10KHz
0.01 %/VO
Ripple Rejection
R
R
V
O
=10V, f=120Hz
60
dB
V
O
=10V, f=120Hz, C
ADJ
=10µF
66
dB
Long Term Stability, T
J
=T
HIGH
S
T
T
a
=25ºC, 1000hr
1.0
%
Junction to Case Thermal Resistance
R
th (j-c)
5.0 ºC/W
Note: Testing with low duty pulse should be used to aviod heating effect
LM317Rev110205E
Continental Device India Limited
Data Sheet Page 2 of 4