ISL6443AIRZ-TK Intersil, ISL6443AIRZ-TK Datasheet - Page 9
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ISL6443AIRZ-TK
Manufacturer Part Number
ISL6443AIRZ-TK
Description
IC CTRLR SGL/STP DWN PWM 28-QFN
Manufacturer
Intersil
Datasheet
1.ISL6443AIRZ.pdf
(19 pages)
Specifications of ISL6443AIRZ-TK
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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