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ISL6441 Datasheet(PDF) 9 Page - Renesas Technology Corp

Part # ISL6441
Description  1.4MHz Dual, 180째 Out-of-Phase, Step-Down PWM and Single Linear Controller
PDF  19 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ISL6441 Datasheet(HTML) 9 Page - Renesas Technology Corp

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ISL6441
FN9197 Rev 3.00
Page 9 of 19
May 26, 2009
FIGURE 7. LOAD TRANSIENT RESPONSE VOUT1 (3.3V)
FIGURE 8. LOAD TRANSIENT RESPONSE VOUT2 (3.3V)
FIGURE 9. PWM SOFT-START WAVEFORM
FIGURE 10. OVERCURRENT HICCUP MODE OPERATION
FIGURE 11. PWM1 EFFICIENCY vs LOAD, VIN = 5V,
VOUT = 3.3V
FIGURE 12. PWM2 EFFICIENCY vs LOAD, VIN = 5V,
VOUT = 3.3V
Typical Performance Curves
Oscilloscope plots are taken using the ISL6441AEVAL Evaluation Board, VIN = 12V, Unless
Otherwise Noted. (Continued)
VOUT1 200mV/DIV
IOUT1 1A/DIV
AC COUPLED
VOUT2 200mV/DIV
AC COUPLED
IOUT2 1A/DIV
VCC_5V 1V/DIV
VOUT1 1V/DIV
VOUT1 2V/DIV
IL1 2A/DIV
SS1 2V/DIV
70
80
100
01.0
2.5
3.5
LOAD CURRENT (A)
0.5
1.5
2.0
3.0
4.0
90
70
80
100
01.0
2.5
3.5
LOAD CURRENT (A)
0.5
1.5
2.0
3.0
4.0
90



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