LM317M
MAXIMUM RATINGS (T = 25°C, unless otherwise noted.)
A
Rating
Symbol
V −V
Value
Unit
Input−Output Voltage Differential
40
Vdc
I
O
Power Dissipation (Package Limitation) (Note 1)
Plastic Package, T Suffix, Case 221A
T = 25°C
P
Internally Limited
A
D
JA
JC
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Plastic Package, DT Suffix, Case 369C
q
q
70
°C/W
°C/W
5.0
T = 25°C
Internally Limited
P
A
D
JA
JC
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Plastic Package, ST Suffix, Case 318E
92
°C/W
°C/W
q
q
5.0
T = 25°C
Thermal Resistance, Junction−to−Air
Internally Limited
P
A
D
JA
JC
245
15
°C/W
°C/W
q
q
Thermal Resistance, Junction−to−Case
Operating Junction Temperature Range
Storage Temperature Range
T
−40 to +125
−65 to +150
°C
°C
J
T
stg
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. Figure 25 provides thermal resistance versus PC board pad size.
ELECTRICAL CHARACTERISTICS (V − V = 5.0 V; I = 0.1 A, T = T to T (Note 2), unless otherwise noted.)
high
I
O
O
J
low
LM317M / LM317MB
Min
Typ
Max
Characteristics
Line Regulation (Note 3) (T = 25°C, 3.0 V ≤ V − V ≤ 40 V)
Figure
Symbol
Unit
3
4
Reg
−
0.01
0.04
%/V
A
I
O
line
Load Regulation (Note 3)
T = 25°C, 10 mA ≤ I ≤ 0.5 A
Reg
load
A
O
−
−
5.0
0.1
25
0.5
mV
V
≤ 5.0 V
≥ 5.0 V
O
% V
O
V
O
Adjustment Pin Current
Adjustment Pin Current Change
2.5 V ≤ V − V ≤ 40 V, 10 mA ≤ I ≤ 0.5 A, P ≤ P
5
I
−
−
50
100
5.0
mA
mA
Adj
3, 4
DI
0.2
Adj
I
O
L
D
max
Reference Voltage
5
3
4
V
1.200
−
1.250
0.02
1.300
0.07
V
ref
3.0 V ≤ V − V ≤ 40 V, 10 mA ≤ I ≤ 0.5 A, P ≤ P
I
O
L
D
max
Line Regulation (Note 3)
Reg
%/V
line
3.0 V ≤ V −V ≤ 40 V
I
O
Load Regulation (Note 3)
Reg
load
10 mA ≤ I ≤ 0.5 A
O
−
−
20
0.3
70
1.5
mV
V
V
≤ 5.0 V
≥ 5.0 V
O
% V
% V
O
O
Temperature Stability (T
≤ T ≤ T
)
5
5
5
T
−
−
0.7
3.5
−
low
J
high
S
O
Minimum Load Current to Maintain Regulation (V − V = 40 V)
I
10
mA
A
I
O
Lmin
Maximum Output Current
I
max
0.5
0.15
0.9
0.25
−
−
V − V ≤ 15 V, P ≤ P
I
O
D
max
max
V − V = 40 V, P ≤ P
, T = 25°C
A
I
O
D
RMS Noise, % of V (T = 25°C, 10 Hz ≤ f ≤ 10 kHz)
−
6
N
−
0.003
−
% V
O
O
A
Ripple Rejection, V = 10 V, f = 120 Hz (Note 4)
RR
dB
O
−
66
65
80
−
−
Without C
Adj
C
= 10 mF
Adj
Long−Term Stability, T = T
T = 25°C for End−point Measurements
A
(Note 5)
5
S
−
0.3
1.0
%/1.0
kHrs.
J
high
2. T
to T
= 0° to +125°C for LM317M
T
to T
= −ꢁ40° to +125°C for LM317MB.
low
high
low
high
3. Load and line regulation are specified at constant junction temperature. Changes in V due to heating effects must be taken into account
O
separately. Pulse testing with low duty cycle is used.
4. C , when used, is connected between the adjustment pin and ground.
Adj
5. Since Long−Term Stability cannot be measured on each device before shipment, this specification is an engineering estimate of average
stability from lot−to−lot.
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