ISL6402EVAL4 Intersil, ISL6402EVAL4 Datasheet - Page 9
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ISL6402EVAL4
Manufacturer Part Number
ISL6402EVAL4
Description
EVALUATION BOARD ISL6402
Manufacturer
Intersil
Datasheet
1.ISL6402IR.pdf
(19 pages)
Specifications of ISL6402EVAL4
Main Purpose
DC/DC, Step Down with LDO
Outputs And Type
3, Non-Isolated
Voltage - Output
1.2V, 2.5V, 3.3V
Voltage - Input
4.5 ~ 24V
Regulator Topology
Buck
Frequency - Switching
300kHz
Board Type
Fully Populated
Utilized Ic / Part
ISL6402
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Typical Performance Curves
(Oscilloscope Plots Are Taken Using the ISL6402EVAL4A 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
ISL6402
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
OUT1
OUT1
L1
OUT1
2A/DIV
100
200mV/DIV
1A/DIV
2V/DIV
90
80
70
60
0
1
LOAD CURRENT (A)
2
3
November 8, 2004
FN9123.3
4