Data Sheet

LM431SA / LM431SB / LM431SC — Programmable Shunt Regulator
Typical Applications
Figure 5. Shunt Regulator Figure 6. Output Control for Three- Terminal Fixed
Regulator
Figure 7. High Current Shunt Regulator
Figure 8. Current Limit or Current Source
Figure 9. Constant-Current Sink
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
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