Datasheet

LM317L, NCV317LB
http://onsemi.com
4
*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
+
1mF
C
O
240
1%
R
1
Adjust
R2
1
%
C
in
0.1mF
LM317L
I
Adj
Figure 2. Line Regulation and DI
Ad
j
/Line Test Circuit
V
OL
*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)
V
O
(max Load)
LM317L
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 3. Load Regulation and DI
Ad
j
/Load Test Circuit
V
O
(min Load)
Pulse Testing Required:
1% Duty Cycle is suggested.
LM317L
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 4. Standard Test Circuit