NCV317 ON Semiconductor, NCV317 Datasheet - Page 9

• Manufacturer Part Number: NCV317
• Description: Positive Voltage Regulator
• Manufacturer: ON Semiconductor

* To provide current limiting of I
*
*
ground, the source of the FET must be tied to a
negative voltage below − 1.25 V.
R
V
I
As shown 0 < I
Lmin
O
1
=
< BV
V
Figure 23. Adjustable Current Limiter
+25 V
− I
in
V
in
Figure 25. Slow Turn−On Regulator
DSS
I
Omax
DSS
Adjust
V
< I
+ 1.25 V + V
Adjust
ref
+ I
O
O
R
DSS
LM317
2
< 1.5 A.
< 1.0 A.
LM317
SS
MPS2907
R
,
O
2
to the system
≤
V
V
I
out
V
DDS
out
ref
240
50 k
1.25
R
1
100
R
2
+
V
1N4001
10 mF
SS
*
2N5640
D
1N4001
D
1N4001
1
2
LM317, NCV317
http://onsemi.com
I
out
9
Figure 24. 5.0 V Electronic Shutdown Regulator
V
in
V
in
* D
Adjust
1
protects the device during an input short circuit.
Adjust
Figure 26. Current Regulator
LM317
720
LM317
I out +
10 mA ≤ I
1N4002
+ 1.25 V
D
1
I
*
Adj
V
R 1
V
out
R 1
out
120
ref
≤ 1.5 A
Minimum V
V
out
MPS2222
R
) I
1
Adj
1.0 k
+
out
1.0 mF
= 1.25 V
I
out
TTL
Control