LM317
Absolute Maximum Ratings
Parameter
Input-Output Voltage Differential
Lead Temperature
Power Dissipation
Operating Junction Temperature Range
Storage Temperature Range
Temperature Coefficient of Output Voltage
Symbol
V
I
- V
O
T
LEAD
P
D
T
j
T
STG
Value
40
230
Internally limited
0
a
125
Unit
V
q
C
W
'
V
O
/
'
T
65
a
125
r
0.02
q
C
q
C
% /
q
C
Note 1:
Absolute Maximum Ratings: are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at
these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The “Recommended
Operating Conditions” table will define the conditions for actual device operation.
Electrical Characteristic
(V
I
- V
O
5V, I
O
0.5A, 0
q
C
d
T
J
d
125
q
C, I
MAX
Symbol
Rline
T
A
1.5A, P
DMAX
25
q
C
20W, unless otherwise specified)
Conditions
Min
––
–
–
Typ
0.01
0.02
18.0
0.4
–
–
–
–
40.0
0.8
46.0
2.0
Max
0.04
0.07
25.0
0.5
70.0
1.5
100
5.0
mV% / V
O
Unit
%/V
%/V
mV% / V
O
Parameter
Line Regulation (Note 2)
3V
d
V
I
V
O
d
40V
3V
d
V
I
V
O
d
40V
Load Regulation (Note 2)
Rload
T
A
25
q
c, 10mA
d
I
O
d
I
MAX
V
O
5V
V
O
t
5V
10mA
d
I
O
d
I
MAX
V
O
5V
V
O
t
5V
Adjustable Pin Current
Adjustable Pin Current Change
Reference Voltage
I
ADJ
P
A
P
A
'
I
ADJ
V
REF
3V
d
V
I
V
O
d
40V
10mA
d
I
O
d
I
MAX
P
D
d
P
MAX
3V
d
V
IN
- V
O
d
40V
10mA
d
I
O
d
I
MAX
P
D
d
P
MAX
1.20
–
–
–
1.0
1.25
0.7
3.5
2.2
0.3
1.30
–
12.0
–
0.01
–
1.0
–
V
% / V
O
mA
A
% / V
O
dB
%
Temperature Stability
Minimum Load Current to Maintain Regulation
Maximum Output Current
ST
T
I
L(MIN)
I
O(MAX)
V
I
- V
O
40V
V
I
- V
O
d
15V, P
D
d
P
MAX
V
I
- V
O
d
40V, P
D
d
P
MAX
T
A
25
q
C
T
A
V
O
C
ADJ
T
A
RMS Noise,% of V
OUT
Ripple Rejection
Long-Term Stability, T
J
T
HIGH
eN
RR
ST
R
T
JC
25
q
C, 10Hz
d
f
d
10KHz
10V, f
120Hz without C
ADJ
10
P
F (Note 3)
–
66.0
–
–
0.003
60.0
75.0
0.3
5.0
25
q
C for end point measurements, 1000HR
–
Thermal Resistance Junction to Case
q
C / W
Note 2:
Load and line regulation are specified at constant junction temperature. Change in V
D
due to heating effects must be taken into account separately.
Pulse testing with low duty is used. (P
MAX
20S)
Note 3:
CADJ, when used, is connected between the adjustment pin and ground.
www.fairchildsemi.com
2
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
