Diodes AZ431B - Manual (Page 9)

Data Sheet
9
Dec. 2012 Rev. 3.3 BCD Semiconductor Manufacturing Limited
ADJUSTABLE PRECISION SHUNT REGULATORS AZ431-B
Figure 14. Reference Impedance vs. Frequency
1K 10K 100K 1,000K
0.1
1
10
Re
ference I
m
peda
nc
e
(
Ω
)
Frequency (Hz)
I
KA
=10mA
T
A
=25 o C
GND
Output
50
1K
I
KA
Typical Performance Characteristics (Continued)
Figure 15. Stability Boundary Conditions vs. Load Capacitance
I
KA
R1 (10K)
R2
150
0.01 0.1 1 10
0
2
4
6
8
10
12
14
16
18
20
V
KA
=10V:No oscillation
V
KA
=15V:No oscillation
Stable
Cathode Current
(mA
)
Load Capacitance ( μ F)
V
KA
=V
REF
V
KA
=5V
Stable