ISL6443IRZ-T Intersil, ISL6443IRZ-T Datasheet - Page 9

• Manufacturer Part Number: ISL6443IRZ-T
• Description: IC CTRLR PWM DUAL 300KHZ 28-QFN
• Manufacturer: Intersil

Specifications of ISL6443IRZ-T

• Applications: Power Supplies
• Current - Supply: 50µA
• Voltage - Supply: 5.6 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Curves
(Oscilloscope Plots are Taken Using the ISL6443EVAL Evaluation Board, VIN = 12V Unless Otherwise Noted.)
FIGURE 11. PWM1 EFFICIENCY vs LOAD (3.3V), VIN = 12V
V
AC COUPLED
I
FIGURE 7. LOAD TRANSIENT RESPONSE VOUT1 (3.3V)
OUT1
OUT1
1A/DIV
100
200mV/DIV
90
80
70
60
FIGURE 9. PWM SOFT-START WAVEFORM
0
V
OUT1
VCC_5V 1V/DIV
1
1V/DIV
LOAD CURRENT (A)
9
2
(Continued)
3
4
ISL6443
FIGURE 12. PWM2 EFFICIENCY vs LOAD (3.3V), VIN = 12V
FIGURE 10. OVERCURRENT HICCUP MODE OPERATION
V
AC COUPLED
V
FIGURE 8. LOAD TRANSIENT RESPONSE VOUT2 (3.3V)
I
SS1 2V/DIV
I
OUT2
OUT1
L1
OUT2
2A/DIV
100
200mV/DIV
1A/DIV
2V/DIV
90
80
70
60
0
1
LOAD CURRENT (A)
2
3
August 9, 2006
FN9044.2
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