6

Date: 1/19/05

SPX431A,B,C Precision Adjustable Shunt Regulator

© Copyright 2005 Sipex Corporation

TYPICAL PERFORMANCE CHARACTERISTICS (continued)

Figure 15. Test Circuit for Pulse Response

Figure 16. Stability Boundry Conditions

Figure 17. Test Circuit for Stability

Figure 18. Dynamic Output Impedance T

I

Figure 19. Off State Leakage

Figure 20. Shunt Regulator V

GND

250Ω

50Ω

100

90

80

70

60

50

40

30

20

10

0

C

D

B

A

STABLE

STABLE

150

Ω

10k

Ω

I

K

C

L

R

0.01

0.1

1

10

100

-50

0

50

100

150

T

I

f Frequency (Hz)

100

10

1.0

0.1

0.01

1K

10K

100K

1M

10M

R2

0.1%

R3

R1

0.1%

SPX431A,B,C