isl62391 Intersil Corporation, isl62391 Datasheet - Page 9

• Manufacturer Part Number: isl62391
• Description: High-efficiency, Triple-output System Power Supply Controller For Notebook Computers
• Manufacturer: Intersil Corporation

Typical Performance Curves
FIGURE 9. ENABLE CONTROL, EN1 = HIGH, V
FIGURE 5. CHANNEL 1 EFFICIENCY AT V
FIGURE 7. POWER-ON, V
100
95
90
85
80
75
70
65
60
55
50
0.10
OPERATION. HIGH-SIDE 1xIRF7821,
r
r
F
V
DS(ON)
DS(ON)
SW
O
= 3.3V, I
= 270kHz
= 9.1mΩ; LOW-SIDE 1xIRF7832,
= 4mΩ; L = 4.7µH, DCR = 14.3m
PHASE1
PGOOD
PGOOD
O
EN1
V
FB1
= 5A
V
FB1
O1
V
IN
O1
IN
I
OUT
9
= 12V, LOAD = 5A, V
= 7V
1.00
V
(A)
IN
= 19V
O
V
= 3.3V, DEM
IN
= 12V
IN
= 12V,
O
Ω
ISL62391, ISL62392
= 3.3V
; CCM
10.00
FIGURE 10. ENABLE CONTROL, EN1 = LOW, V
FIGURE 6. CHANNEL 2 EFFICIENCY AT V
100
FIGURE 8. POWER-OFF, V
95
90
85
80
75
70
65
60
55
50
0.01
OPERATION. HIGH-SIDE 1xIRF7821,
r
r
F
V
DS(ON)
DS(ON)
SW
O
= 3.3V, I
= 330kHz
V
IN
= 9.1mΩ; LOW-SIDE 1xIRF7832,
= 4mΩ; L = 4.7µH, DCR = 14.3mΩ; CCM
= 7V
0.10
V
PHASE1
PGOOD
PGOOD
IN
O
EN1
FB1
V
= 19V
= 5A
V
FB1
O1
O1
I
OUT
IN
= 12V, I
(A)
V
IN
= 12V
1.00
O
= 5A, V
O
= 5V, DEM
IN
December 22, 2008
O
= 12V,
= 3.3V
FN6666.4
10.00