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LM317M Datasheet(PDF) 5 Page - Fairchild Semiconductor

Part No. LM317M
Description  3-Terminal 0.5A Positive Adjustable Regulator
Download  8 Pages
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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LM317M Datasheet(HTML) 5 Page - Fairchild Semiconductor

   
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LM317M
5
Typical Application
Figure 1. 1 5V Electronic Shutdown Regulator
D1 protects the device during an input short circuit.
Figure 2. Slow Turn-On Regulator
Figure 3. Current Regulator
LM317M
120
Output
Input
1K
KSP2222
720
TTL CONTROL
1.0uF
1N4002
D1
VADJ
VO
MINIMUM VO = 1.25V
+
LM317M
Output
Input
KSP2907
50K
1N4001
1.0uF
+
VADJ
VO
240
R2
Output
Input
R2
VO
IADJ
VADJ
R1
IO
LM317M
I
OMAX
V
REF
R1
-----------------
⎝⎠
⎛⎞
I
ADJ
1.25V
R1
----------------
+
=
I
OMAX
V
REF
R1
R2
+
----------------------
⎝⎠
⎛⎞
=
I
ADJ
+
1.25V
R1
R2
+
----------------------
5mA
I
O
500mA
<<


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