ISL6443AIRZ Intersil, ISL6443AIRZ Datasheet - Page 8

• Manufacturer Part Number: ISL6443AIRZ
• Description: IC CTRLR SGL/STEP DOWN PWM 28QFN
• Manufacturer: Intersil

Specifications of ISL6443AIRZ

• Applications: Power Supplies
• Current - Supply: 2mA
• Voltage - Supply: 5.6 V ~ 24 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-QFN
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Performance Curves
FIGURE 3. REFERENCE VOLTAGE VARIATION OVER
I
V
L1
PHASE1 10V/DIV
OUT1
0.5A/DIV, AC-COUPLED
3.40
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
3.31
3.30
0.85
0.84
0.83
0.82
0.81
0.80
0.79
0.78
0.77
0.76
0.75
20mV/DIV, AC-COUPLED
-40
FIGURE 1. PWM1 LOAD REGULATION
0
TEMPERATURE
FIGURE 5. PWM1 WAVEFORMS
0.5
-20
1.0
LOAD CURRENT (A)
1.5
TEMPERATURE (°C)
0
8
2.0
20
2.5
40
3.0
Oscilloscope Plots are Taken Using the ISL6443A EVAL Evaluation Board, VIN = 12V Unless
Otherwise Noted.
3.5
60
4.0
80
4.5
ISL6443A
I
PGOOD 5V/DIV
V
V
V
V
L2
PHASE2 10V/DIV
OUT3
OUT1
OUT2
OUT2
FIGURE 4. SOFT-START WAVEFORMS WITH PGOOD
0.5A/DIV, AC-COUPLED
3.40
3.39
3.38
3.37
3.36
3.35
3.34
3.33
3.32
3.31
3.30
20mV/DIV, AC-COUPLED
2V/DIV
2V/DIV
2V/DIV
FIGURE 2. PWM2 LOAD REGULATION
0
FIGURE 6. PWM2 WAVEFORMS
0.5
1.0
LOAD CURRENT (A)
1.5
2.0
2.5
3.0
3.5
4.0
June 2, 2008
FN6600.2
4.5