Diodes AN431 - Manual (Page 9)

Data Sheet
9
Dec. 2012 Rev. 2. 0 BCD Semiconductor Manufacturing Limited
ADJUSTABLE PRECISION SHUNT REGULATORS AN431
Figure 14. Reference Impedance vs. Frequency
Figure 15. Stability Boundary Conditions vs. Load Capacitance
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)
I
KA
R1 (10K)
R2
150
0
10
20
30
40
50
60
70
80
90
100
10 1 0.1 0.01
Stable Stable
Cat
h
ode Current (mA
)
Load Capacitance ( μ F)
V
KA
=V
REF
V
KA
= 5V
V
KA
=10V
V
KA
=15V
0.001