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LM431SA Datasheet(PDF) 7 Page - Fairchild Semiconductor

Part # LM431SA
Description  Programmable Shunt Regulator
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

LM431SA Datasheet(HTML) 7 Page - Fairchild Semiconductor

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© 2012 Fairchild Semiconductor Corporation
www.fairchildsemi.com
LM431SA/LM431SB/LM431SC Rev. 1.2.0
7
Typical Application
V
O
1
R
1
R
2
-------
+
⎝⎠
⎛⎞ V
ref
=
LM431S
V
O
V
ref 1
R
1
R
2
-------
+
⎝⎠
⎛⎞
=
LM431S
LM7805/MC7805
V
O
1
R
1
R
2
-------
+
⎝⎠
⎛⎞ V
ref
=
LM431S
LM431S
LM431S
Figure 13. Shunt Regulator
Figure 14. Output Control for
Three-Terminal Fixed Regulator
Figure 15. High Current Shunt Regulator
Figure 16. Current Limit or Current Source
Figure 17. Constant-Current Sink


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