ISL6443AEVAL2Z Intersil, ISL6443AEVAL2Z Datasheet - Page 9

• Manufacturer Part Number: ISL6443AEVAL2Z
• Description: EVALUATION BOARD FOR ISL6443A
• Manufacturer: Intersil

Specifications of ISL6443AEVAL2Z

• Main Purpose: DC/DC, Step Down with LDO
• Outputs And Type: 3, Non-Isolated
• Voltage - Output: 1.8V, 3.3V, 1.2V
• Current - Output: 2A, 2A, 200mA
• Voltage - Input: 12V
• Regulator Topology: Buck
• Frequency - Switching: 300kHz
• Board Type: Fully Populated
• Utilized Ic / Part: ISL6443A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

Typical Performance Curves
FIGURE 11. PWM1 EFFICIENCY vs LOAD (3.3V), V
V
AC-COUPLED
I
OUT1
FIGURE 7. LOAD TRANSIENT RESPONSE V
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
Oscilloscope Plots are Taken Using the ISL6443A EVAL Evaluation Board, VIN = 12V Unless
Otherwise Noted. (Continued)
3
OUT1
IN
(3.3V)
= 12V
4
ISL6443A
FIGURE 12. PWM2 EFFICIENCY vs LOAD (3.3V), V
FIGURE 10. OVERCURRENT HICCUP MODE OPERATION
V
AC-COUPLED
V
I
SS1 2V/DIV
I
FIGURE 8. LOAD TRANSIENT RESPONSE V
OUT2
OUT1
L1
OUT2
2A/DIV
100
200mV/DIV
1A/DIV
2V/DIV
90
80
70
60
0
1
LOAD CURRENT (A)
2
3
OUT2
IN
(3.3V)
June 2, 2008
= 12V
FN6600.2
4