NCP431A, SC431A, NCP431B, NCP432B Series
TYPICAL APPLICATIONS
V+
IK
VOUT
R1
CL
R2
ǒ Ǔ VOUT +
1 ) R1
R2
Vref
Figure 21. Shunt Regulator
MC7805
V+
In
Out
Common
VOUT
R1
V+
VOUT
R1
R2
ǒ Ǔ VOUT +
1 ) R1
R2
Vref
Figure 22. High Current Shunt
Regulator
V+
VOUT
R1
R2
ǒ Ǔ VOUT +
1 ) R1
R2
Vref
VOUT(min) + Vref ) 5.0 V
Figure 23. Output Control for a
Tree−Terminal Fixed Regulator
RCL
V+
IOUT
Vref
IOUT + RCL
Figure 25. Constant Current Source
R2
ǒ ǓR1
VOUT +
1)
R2
Vref
VIN(min) + VOUT ) Vbe
VOUT(min) + Vref
Figure 24. Series Pass
Regulator
V+
ISink
Vref
ISink + Rs
RS
Figure 26. Constant Current
Sink
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