Datasheet

LM317M
http://onsemi.com
7
*Pulse Testing Required:
1% Duty Cycle is suggested.
LM317M
V
in
V
out
Adjust
R
1
240
1%
+
1FC
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
0.1F
Figure 5. Standard Test Circuit
LM317M
V
in
V
out
V
out
= 10 V
R
L
C
in
0.1F
Adjust
R
1
240
1%
D
1
*
1N4002
C
O
+
1.0F
24V
14V
R
2
1.65K
1%
C
Adj
10F
+
*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