ISL6402 データシートの表示（PDF） - Intersil

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ISL6402

300kHz Dual, 180° Out-of-Phase, StepDown PWM and Single Linear Controller

Intersil 

ISL6402

Typical Performance Curves (Continued)

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

VOUT1 200mV/DIV

AC COUPLED

VOUT1 200mV/DIV

AC COUPLED

IOUT1 1A/DIV

FIGURE 7. LOAD TRANSIENT RESPONSE VOUT1 (3.3V)

IOUT1 1A/DIV

FIGURE 8. LOAD TRANSIENT RESPONSE VOUT2 (3.3V)

VCC_5V 1V/DIV

VOUT1 2V/DIV

VOUT1 1V/DIV

FIGURE 9. PWM SOFT-START WAVEFORM

100

90

80

70

60

0

1

2

3

4

LOAD CURRENT (A)

FIGURE 11. PWM1 EFFICIENCY vs LOAD (3.3V), VIN = 12V

9

IL1 2A/DIV

SS1 2V/DIV

FIGURE 10. OVERCURRENT HICCUP MODE OPERATION

100

90

80

70

60

0

1

2

3

4

LOAD CURRENT (A)

FIGURE 12. PWM2 EFFICIENCY vs LOAD (3.3V), VIN = 12V

FN9123.3

November 8, 2004

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