Datasheet

KA431S / KA431SA / KA431SL — Programmable Shunt Regulator
© 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com
KA431S / KA431SA / KA431SL Rev. 1.1.1 7
Typical Performance Characteristics (Continued)
Figure12. Stability Boundary Conditions
Figure13. Anode-Reference Diode Curve
Figure14. Reference-Cathode Diode Curve
100p 1n 10n 100n
1?
10?
0
20
40
60
80
100
120
140
B
A
A V
KA
= Vref
B V
KA
= 5.0 V @ I
K
= 10
mA
T
A
= 25
o
C
I
K
, CATHODE CURRENT(mA)
C
L
, LOAD CAPACITANCE
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
0
1
2
3
4
5
Current(mA)
Anode-Ref. Voltage(V)
0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
0
1
2
3
4
5
Current(mA)
Ref.-Cathode Voltage(V)