Typical Application
VO
=
1
+
R-R----12-
Vref
VO
=
Vr
ef
1
+
R-R----12-
LM7805/MC7805
LM431SA/LM431SB/LM431SC
VO = 1 + R-R----12- Vref
LM431S
Figure 13. Shunt Regulator
LM431S
LM431S
-
Figure 14. Output Control for
Three-Termianl Fixed Regulator
Figure 15. High Current Shunt Regulator
LM431S
Figure 16. Current Limit or Current Source
LM431S
Figure 17. Constant-Current Sink
7