ISL6443A Ver la hoja de datos (PDF) - Renesas Electronics

Número de pieza

componentes Descripción

Fabricante

ISL6443A

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

Renesas Electronics 

ISL6443A

Typical Performance Curves Oscilloscope Plots are Taken Using the ISL6443A EVAL Evaluation Board, VIN = 12V Unless

Otherwise Noted. (Continued)

VOUT1 200mV/DIV

AC-COUPLED

VOUT2 200mV/DIV

AC-COUPLED

IOUT1 1A/DIV

FIGURE 7. LOAD TRANSIENT RESPONSE VOUT1 (3.3V)

IOUT2 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

FN6600 Rev 3.00

Sep 4, 2015

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

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