4

Date: 5/25/04

SPX431L Precision Adjustable Shunt Regulator

© Copyright 2004 Sipex Corporation5

-2

-1

0

1

2

3

150

125

100

75

50

25

0

-25

-50

-75

-100

0°C to 105°C

-60

-30

0

30

60

90

120

2.53

2.52

2.51

2.50

2.49

2.48

2.47

2.46

2.45

TYPICAL PERFORMANCE CHARACTERISTICS

Figure 5. High Current Operating Characteristics

Figure 6. Reference Voltage VS Ambient Tempetature

TEST CIRCUITS

R1

R2

Figure 2. Test Circuit for V

Figure 3. Test Circuit for V

Figure 4. Test Circuit for I

KOFF

-1.0

0

1.0

2.0

3.0

900

800

700

600

500

400

300

200

100

0

-100

-200

0° to 105°C

105°C

25°C

-0°C

-60

-30

0

30

60

90

120

3.0

2.5

2.0

1.5

1.0

0.5

0

R1 = 10kΩ

R2 = ∞

Figure 7. Low Current Operating Characteristics.

Figure 8. Reference Input Current VS Ambient

Temperature.