KA317L Fairchild Semiconductor, KA317L Datasheet - Page 3

• Manufacturer Part Number: KA317L
• Description: The KA317L is a 3-terminal adjustable positive voltage regulator capable of supplying in excess of 100mA over an output voltage range of 1
• Manufacturer: Fairchild Semiconductor

Typical Application
D1 protects the device during an input short circuit.
Input
Input
Input
KA317L
V
V
ADJ
ADJ
R2
KA317L
V
ADJ
KA317L
D1
1N4002
720
Figure 1. 5V Electronic Shutdown Regulator
Figure 2. Slow Turn-On Regulator
I
OMAX
I
OMAX
Figure 3. Current Regulator
KSP2222
=
I
ADJ
5mA
V
⎛
⎝
=
--------------------- -
R1
O
V
⎛
⎝
V
---------------- -
REF
+
<
REF
R1
R2
I
O
⎞
⎠
<
⎞
⎠
KSP2907
+
+
500mA
MINIMUM V
I
I
ADJ
ADJ
V
V
R1
O
≅
120
O
≅
240
--------------------- -
R1
1K
1.25V
--------------- -
1.25V
R1
+
R2
O
= 1.25V
50K
R2
TTL CONTROL
+
I
O
1N4001
1.0uF
+
1.0uF
Output
Output
Output
KA317L
3