ISL6617A_14 Datasheet, PDF (13/15 Pages) Intersil Corporation – PWM Doubler with Output Monitoring Feature

ISL6617A
2200
24 CHANNELS, 6 INTERLEAVING
1155
24 CHANNELS, 8 INTERLEAVING
1100
24 CHANNELS, 12 INTERLEAVING
24 INTERLEAVING PHASES
55
80
60
24 CHANNELS, 6 INTERLEAVING
24 CHANNELS, 8 INTERLEAVING
40
24 CHANNELS, 12 INTERLEAVING
24 INTERLEAVING PHASES
20
00 ₀
10
20
30
40
50
DUTY CYCLE (%)
FIGURE 12. INPUT CURRENT RIPPLE vs DUTY CYCLE, PHASE COUNT
0
0
10
20
30
40
50
DUTY CYCLE (%)
FIGURE 13. OUTPUT CURRENT RIPPLE vs DUTY CYCLE, PHASE
COUNT
93
92
91
90
PHASE DOUBLER IN
INTERLEAVING MODE
89
PHASE DOUBLER IN
SYNCHRONOUS MODE
88
6-PHASE, SAME AMOUNT
87
OF MOSFETS AND INDUCTORS
86
85
0 20 40 60 80 100 120 140 160 180
LOAD (A)
FIGURE 14. EFFICIENCY COMPARISON IN 12-PHASE DESIGN
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December 19, 2014