LM317L
ELECTRICAL CHARACTERISTICS
(V
I
−V
O
= 5.0 V; I
O
= 40 mA; T
J
= T
low
to T
high
(Note 1); I
max
and P
max
(Note 2);
unless otherwise noted.)
LM317L, LB
Characteristics
Line Regulation (Note 3)
T
A
= 25°C, 3.0 V
≤
V
I
− V
O
≤
40 V
Load Regulation (Note 3), T
A
= 25°C
10 mA
≤
I
O
≤
I
max
− LM317L
V
O
≤
5.0 V
V
O
≥
5.0 V
Adjustment Pin Current
Adjustment Pin Current Change
2.5 V
≤
V
I
− V
O
≤
40 V, P
D
≤
P
max
10 mA
≤
I
O
≤
I
max
− LM317L
Reference Voltage
3.0 V
≤
V
I
− V
O
≤
40 V, P
D
≤
P
max
10 mA
≤
I
O
≤
I
max
− LM317L
Line Regulation (Note 3), 3.0 V
≤
V
I
− V
O
≤
40 V
Load Regulation (Note 3)
10 mA
≤
I
O
≤
I
max
− LM317L
V
O
≤
5.0 V
V
O
≥
5.0 V
Temperature Stability (T
low
≤
T
J
≤
T
high
)
Minimum Load Current to Maintain Regulation (V
I
− V
O
= 40 V)
Maximum Output Current
V
I
− V
O
≤
6.25 V, P
D
≤
P
max
, Z Package
V
I
− V
O
≤
40 V, P
D
≤
P
max
, T
A
= 25°C, Z Package
RMS Noise, % of V
O
T
A
= 25°C, 10 Hz
≤
f
≤
10 kHz
Ripple Rejection (Note 4)
V
O
= 1.2 V, f = 120 Hz
C
Adj
= 10
mF,
V
O
= 10.0 V
Long Term Stability, T
J
= T
high
(Note 5)
T
A
= 25°C for Endpoint Measurements
3.
4.
5.
4
Figure
1
2
Symbol
Reg
line
Reg
load
−
−
3
1, 2
I
Adj
DI
Adj
−
−
5.0
0.1
50
0.2
25
0.5
100
5.0
mV
% V
O
mA
mA
Min
−
Typ
0.01
Max
0.04
Unit
%/V
3
V
ref
1.20
1.25
1.30
V
1
2
Reg
line
Reg
load
−
0.02
0.07
%/V
−
−
3
3
3
T
S
I
Lmin
I
max
100
−
N
RR
60
−
3
S
−
−
−
−
20
0.3
0.7
3.5
200
20
0.00
3
80
80
0.3
70
1.5
−
10
−
−
−
mV
% V
O
% V
O
mA
mA
% V
O
dB
−
−
1.0
%/1.0 k
Hrs.
T
low
to T
high
= 0° to +125°C for LM317L
−40° to +125°C for LM317LB
I
max
= 100 mA
P
max
= 625 mW
Load and line regulation are specified at constant junction temperature. Changes in V
O
due to heating effects must be taken into account
separately. Pulse testing with low duty cycle is used.
6. C
Adj
, when used, is connected between the adjustment pin and ground.
7. 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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