3
AN1291.0
May 17, 2007
Typical Performance
FIGURE 2. CHANNEL-1 EFFICIENCY AT V
O
= 1.5V
FIGURE 3. CHANNEL-2 EFFICIENCY AT V
O
= 1.8V
FIGURE 4. CCM STEADY-STATE OPERATION, V
IN
= 12V,
V
O1
= 1.5V, I
O1
= 3A, V
O2
= 1.8A, I
O2
= 4A
FIGURE 5. DCM STEADY-STATE OPERATION, V
IN
= 12V,
V
O1
= 1.5V, I
O1
= 0.5A, V
O2
= 1.8V, I
O2
= 0.5A
FIGURE 6. TRANSIENT RESPONSE, V
IN
= 19V, V
O
= 1.5V,
I
O
= 0.1A/4.6A @ 2.55A/µs
FIGURE 7. TRANSIENT RESPONSE, V
IN
= 19V, V
O
= 1.8V,
I
O
= 0.1A/5.1A @ 2.55A/µs
EFFICIE
N
CY
(%)
I
OUT
(A)
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
V
IN
=
12V
V
IN
= 19V
V
IN
= 8V
I
OUT
(A)
E
F
F
ICIE
NCY (%
)
60
65
70
75
80
85
90
95
100
0
1
2
3
4
5
6
7
8
V
IN
= 8V
V
IN
= 19V
V
IN
=
12V
V
O1
PHASE1
V
O2
PHASE2
V
O1
PHASE1
V
O2
PHASE2
V
O1
PHASE1
I
O1
V
O2
PHASE2
I
O2
Application Note 1291
Содержание ISL6228EVAL3Z
Страница 10: ...10 AN1291 0 May 17 2007 FIGURE 15 LAYER 1 ISL6228EVAL3Z Evaluation Board Layout Continued Application Note 1291...
Страница 11: ...11 AN1291 0 May 17 2007 FIGURE 16 LAYER 2 ISL6228EVAL3Z Evaluation Board Layout Continued Application Note 1291...
Страница 12: ...12 AN1291 0 May 17 2007 FIGURE 17 LAYER 3 ISL6228EVAL3Z Evaluation Board Layout Continued Application Note 1291...
