LM317

Manufacturer Part NumberLM317
DescriptionThis monolithic integrated circuit is an adjustable 3-terminal positive voltage regulator designed to supply more than 1
ManufacturerFairchild Semiconductor
LM317 datasheet
 


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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
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 Characteristics
= 0.5A, 0°C ≤ T
(V
-V
= 5V, I
I
O
O
J
Parameter
Line Regulation (Note2)
Load Regulation (Note2)
Adjustable Pin Current
Adjustable Pin Current Change
Reference Voltage
Temperature Stability
Minimum Load Current to Maintain
Regulation
Maximum Output Current
RMS Noise, % of V
OUT
Ripple Rejection
Long-Term Stability, T
= T
J
HIGH
Thermal Resistance Junction to Case
Note 2: Load and line regulation are specified at constant junction temperature. Change in V
taken into account separately. Pulse testing with low duty is used. (P
Note 3: C
, when used, is connected between the adjustment pin and ground.
ADJ
2
Symbol
V
- V
I
O
T
LEAD
P
D
T
j
T
STG
ΔVo/ΔT
≤ +125°C, I
= 1.5A, P
MAX
DMAX
Symbol
Conditions
T
= +25°C
A
3V ≤ V
- V
I
O
Rline
3V ≤ V
- V
I
O
= +25°C, 10mA ≤ I
T
A
V
< 5V
O
≥ 5V
V
O
Rload
10mA ≤ I
≤ I
O
V
< 5V
O
≥ 5V
V
O
I
ADJ
3V ≤ V
- V
I
O
ΔI
ADJ
10mA ≤ I
≤ I
O
3V ≤ V
- V
IN
O
10mA ≤ I
≤ I
V
REF
O
≤ P
P
D
MAX
ST
T
I
V
- V
= 40V
L(MIN)
I
O
≤ 15V, P
V
- V
I
O
≤ 40V, P
I
V
- V
O(MAX)
I
O
T
=25°C
A
= +25°C, 10Hz ≤ f ≤ 10kHz
e
T
N
A
V
= 10V, f = 120Hz
O
RR
without C
ADJ
C
= 10μF (Note3)
ADJ
T
= +25°C for end point
A
ST
measurements, 1000HR
θJC
R
MAX
Value
40
230
Internally limited
0 ~ +125
-65 ~ +125
±0.02
= 20W, unless otherwise specified)
Min.
Typ.
-
0.01
≤ 40V
≤ 40V
-
0.02
≤ I
O
MAX
-
18
-
0.4
MAX
-
40
-
0.8
-
-
46
≤ 40V
-
2.0
≤ P
P
MAX
D
MAX
≤ 40V
1.20
1.25
MAX
-
-
0.7
-
3.5
≤ P
1.5
2.2
D
MAX
≤ P
-
0.3
D
MAX
-
0.003
-
60
66
75
-
0.3
-
-
5
due to heating effects must be
D
= 20W)
Unit
V
°C
W
°C
°C
%/°C
Max.
Unit
0.04
%/ V
0.07
%/ V
25
mV
0.5
%/V
O
70
mV
1.5
%/V
O
μA
100
μA
5
1.30
V
-
%/V
O
12
mA
-
A
-
A
0.01
%/V
O
-
dB
-
dB
1
%
°C/W
-