8

FN9123.3

November 8, 2004

Typical Performance Curves

(Oscilloscope Plots Are Taken Using the ISL6402EVAL4A Evaluation Board, VIN = 12V, Unless Otherwise Noted)

FIGURE 1. PWM1 LOAD REGULATION

FIGURE 2. PWM2 LOAD REGULATION

FIGURE 3. REFERENCE VOLTAGE VARIATION OVER

TEMPERATURE

FIGURE 4. SOFT-START WAVEFORMS WITH PGOOD

FIGURE 5. PWM1 WAVEFORMS

FIGURE 6. PWM2 WAVEFORMS

3.3

3.32

3.33

3.35

3.38

3.39

3.4

01

2.5

3.5

LOAD CURRENT (A)

4.5

0.5

1.5

2

3

4

3.37

3.36

3.34

3.31

3.3

3.32

3.33

3.35

3.38

3.39

3.4

01

2.5

3.5

LOAD CURRENT (A)

4.5

0.5

1.5

2

3

4

3.37

3.36

3.34

3.31

-40

-20

20

40

80

0.75

0.81

0.85

TEMPERATURE (°C)

0.78

0.83

0.8

0.77

0

60

0.84

0.82

0.79

0.76

PGOOD 5V/DIV

PHASE1 10V/DIV

PHASE2 10V/DIV

ISL6402