Data sheet, Adjustable precision shunt regulators az431-b, Typical performance characteristics (continued) – Diodes AZ431B User Manual

Page 9: Figure 14. reference impedance vs. frequency

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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

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