LM317M, NCV317MA, NCV317M
www.onsemi.com
2
MAXIMUM RATINGS (T
A
= 25°C, unless otherwise noted.)
Rating
Symbol Value Unit
Input−Output Voltage Differential V
I
−V
O
40 Vdc
Power Dissipation (Package Limitation) (Note 1)
Plastic Package, T Suffix, Case 221A
T
A
= 25°C
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Plastic Package, DT Suffix, Case 369C
T
A
= 25°C
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
Plastic Package, ST Suffix, Case 318E
T
A
= 25°C
Thermal Resistance, Junction−to−Air
Thermal Resistance, Junction−to−Case
P
D
q
JA
q
JC
P
D
q
JA
q
JC
P
D
q
JA
q
JC
Internally Limited
70
5.0
Internally Limited
92
5.0
Internally Limited
245
15
°C/W
°C/W
°C/W
°C/W
°C/W
°C/W
Maximum Junction Temperature T
JMAX
+150 °C
Storage Temperature Range T
stg
−65 to +150 °C
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality
should not be assumed, damage may occur and reliability may be affected.
1. Figure 25 provides thermal resistance versus PC board pad size.
ELECTRICAL CHARACTERISTICS (V
I
− V
O
= 5.0 V; I
O
= 0.1 A, T
J
= T
low
to T
high
(Note 2), unless otherwise noted.)
Characteristics
Figure Symbo
LM317M/LM317MB/NCV317MB
Unit
Min Typ Max
Line Regulation (Note 3) (T
A
= 25°C, 3.0 V ≤ V
I
− V
O
≤ 40 V) 3 Reg
line
− 0.01 0.04 %/V
Load Regulation (Note 3)
T
A
= 25°C, 10 mA ≤ I
O
≤ 0.5 A
V
O
≤ 5.0 V
V
O
≥ 5.0 V
4 Reg
load
−
−
5.0
0.1
25
0.5
mV
% V
O
Adjustment Pin Current 5 I
Adj
− 50 100
mA
Adjustment Pin Current Change
2.5 V ≤ V
I
− V
O
≤ 40 V, 10 mA ≤ I
L
≤ 0.5 A, P
D
≤ P
max
3, 4
DI
Adj
− 0.2 5.0
mA
Reference Voltage
3.0 V ≤ V
I
− V
O
≤ 40 V, 10 mA ≤ I
L
≤ 0.5 A, P
D
≤ P
max
5 V
ref
1.20 1.25 1.30 V
Line Regulation 3.0 V ≤ V
I
−V
O
≤ 40 V (Note 3) 3 Reg
line
− 0.02 0.07 %/V
Load Regulation 10 mA ≤ I
O
≤ 0.5 A (Note 3)
V
O
≤ 5.0 V
V
O
≥ 5.0 V
4 Reg
load
−
−
20
0.3
70
1.5
mV
% V
O
Temperature Stability (T
low
≤ T
J
≤ T
high
) 5 T
S
− 0.7 − % V
O
Minimum Load Current to Maintain Regulation (V
I
− V
O
= 40 V) 5 I
Lmin
− 3.5 10 mA
Maximum Output Current
V
I
− V
O
≤ 15 V, P
D
≤ P
max
V
I
− V
O
= 40 V, P
D
≤ P
max
, T
A
= 25°C
5 I
max
0.5
0.15
0.9
0.25
−
−
A
RMS Noise, % of V
O
(T
A
= 25°C, 10 Hz ≤ f ≤ 10 kHz) − N − 0.003 − % V
O
Ripple Rejection, V
O
= 10 V, f = 120 Hz (Note 4)
Without C
Adj
C
Adj
= 10 mF
6 RR
−
66
65
80
−
−
dB
Thermal Shutdown (Note 5) − − − 180 − °C
Long−Term Stability, T
J
= T
high
(Note 6)
T
A
= 25°C for End−point Measurements
5 S − 0.3 1.0 %/1.0
kHrs.
2. T
low
to T
high
= 0° to +125°C for LM317M T
low
to T
high
= −40° to +125°C for LM317MB, NCV317MB.
3. 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.
4. C
Adj
, when used, is connected between the adjustment pin and ground.
5. Thermal characteristics are not subject to production test.
6. 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.
