LM317M, NCV317MA, NCV317M
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Figure 2. Representative Schematic Diagram
18k
6.8V
6.8V
350
300 300 300 3.0k 300 70
200k
1.2560
50
130
8.67k
500
400
2.4k
12.8k
V
out
5.1k
6.3V
2.0k 6.0k
Adjust
V
in
180 180
10
pF
10
pF
*Pulse Testing Required:
1% Duty Cycle is suggested.
Line Regulation (%/V) =
V
OH
- V
OL
x 100
*
V
CC
V
IH
V
IL
V
in
V
out
V
OH
V
OL
R
L
+
1.0mF
C
O
240
1%
R
1
Adjust
R2
1%
C
in
0.1mF
LM317M
I
Adj
Figure 3. Line Regulation and DI
Adj
/Line Test Circuit
V
OL
LM317M, NCV317MA, NCV317M
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5
*Pulse Testing Required:
1% Duty Cycle is suggested.
Load Regulation (mV) = V
O
(min Load) -V
O
(max Load)
Load Regulation (% V
O
) =
V
O
(min Load) - V
O
(max Load)
X 100
V
O
(min Load)
VO (max Load)
LM317M
C
in
0.1mF
Adjust
R
2
1%
C
O
1.0mF
+
*
R
L
(max Load)
R
L
(min Load)
V
out
R
1
240
1%
V
in
V
in
I
Adj
I
L
Figure 4. Load Regulation and DI
Adj
/Load Test Circuit
V
O
(min Load)
*Pulse Testing Required:
1% Duty Cycle is suggested.
LM317M
V
in
V
out
Adjust
R
1
240
1%
+
1mF
C
O
R
L
C
in
R
2
1%
To Calculate R
2
:
V
out
= I
SET
R
2
+ 1.250 V
Assume I
SET
= 5.25 mA
I
L
I
Adj
I
SET
V
ref
V
O
V
I
0.1mF
Figure 5. Standard Test Circuit
LM317M
V
in
V
out
V
out
= 10 V
R
L
C
in
0.1mF
Adjust
R
1
240
1%
D
1
*
1N4002
C
O
+
1.0mF
24V
14V
R
2
1.65K
1%
C
Adj
10mF
+
*D
1
Discharges C
Adj
if Output is Shorted to Ground.
**C
Adj
provides an AC ground to the adjust pin.
f = 120 Hz
V
O
**
Figure 6. Ripple Rejection Test Circuit
LM317M, NCV317MA, NCV317M
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6
I
out
, OUTPUT CURRENT (A)
I
B
, QUIESCENT CURRENT (mA)
V
in
-V
out
, INPUT-OUTPUT VOLTAGE
DIFFERENTIAL (V)
Figure 7. Load Regulation Figure 8. Ripple Rejection
Figure 9. Current Limit Figure 10. Dropout Voltage
Figure 11. Minimum Operating Current Figure 12. Ripple Rejection versus Frequency
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
-50 -25 0 25 50 75 100 125 150
Δ V
out
T
J
, JUNCTION TEMPERATURE (°C)
, OUTPUT VOLTAGE CHANGE (%)
V
in
= 45 V
V
out
= 5.0 V
I
L
= 5.0 mA to 40 mA
V
in
= 10 V
V
out
= 5.0 V
I
L
= 5.0 mA to 100 mA
80
70
60
50
RR, RIPPLE REJECTION (dB)
-50 -25 0 25 50 75 100 125 150
T
J
, JUNCTION TEMPERATURE (°C)
I
L
= 100 mA
f = 120 Hz
V
out
= 10 V
V
in
= 14 V to 24 V
-50 -25 0 25 50 75 100 125 150
T
J
, JUNCTION TEMPERATURE (°C)
2.5
2.0
1.5
1.0
0.5
I
L
= 500 mA
1.0
0.80
0.60
0.40
0.20
0
0 1020304050
V
in
-V
out
, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (V)
T
J
= 25°C
T
J
= 125°C
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0 10 203040
V
in-
V
out
, INPUT-OUTPUT VOLTAGE DIFFERENTIAL (Vdc)
100
90
80
70
60
50
40
30
20
10
10 100 1.0 k 10 k 100 k 1.0 M
f, FREQUENCY (Hz)
RR, RIPPLE REJECTION (dB)
I
L
= 40 mA
V
in
= 5.0 V ± 1.0 V
PP
V
out
= 1.25 V
90
Without C
Adj
= 10 mF
Without C
Adj
I
L
= 100 mA
T
J
= 25°C
T
J
= 125°C

LM317MBDTRKG

Mfr. #:
Manufacturer:
ON Semiconductor
Description:
Linear Voltage Regulators 500mA ADJ 1.2-37V Positive
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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