isl6228 Intersil Corporation, isl6228 Datasheet - Page 14

• Manufacturer Part Number: isl6228
• Description: High-performance Dual-output Buck Controller For Notebook Applications
• Manufacturer: Intersil Corporation

Typical Performance
FIGURE 11. START-UP, V
FIGURE 13. CCM STEADY-STATE OPERATION,V
100
95
90
85
80
75
70
65
60
FIGURE 9. CHANNEL 1 EFFICIENCY AT V
0
V
1
IN
V
O1
= 8V
= 1.5V, I
2
V
IN
= 19V
O1
IN
3
V
= 12V, LOAD = 0.25
IN
= 3A, V
14
I
= 12V
OUT
4
(A)
O2
FB1
PGOOD1
PHASE1
V
V
PHASE1
PHASE2
O1
V
= 1.8A, I
O2
O1
5
6
O2
Ω
O
, V
IN
= 1.5V
= 4A
O
= 12V,
7
= 1.05V
8
ISL6228
FIGURE 14. DCM STEADY-STATE OPERATION,V
FIGURE 12. SHUT-DOWN, V
100
95
90
85
80
75
70
65
60
FIGURE 10. CHANNEL 2 EFFICIENCY AT VO = 1.8V
0
V
IN
1
V
PHASE1
PGOOD1
O1
= 8V
FB1
= 1.5V, I
V
2
V
O1
IN
= 19V
O1
3
V
IN
= 1A, V
= 12V
I
IN
OUT
= 12V, I
4
(A)
O2
PHASE1
V
= 1.8V, I
5
O
O1
PHASE2
V
O2
= 10A, V
6
O2
IN
= 1A
O
August 27, 2007
= 12V,
= 1.05V
7
FN9095.1
8