ISL62883 Datasheet, PDF (32/39 Pages) Intersil Corporation – Multiphase PWM Regulator for IMVP-6.5 Mobile CPUs and GPUs

ISL62883, ISL62883B
Typical Performance
92
90
88
86
84
V_IN = 8V
82
V_IN = 12V
80
V_IN = 19V
78
76
74
72
700 _{5 10 15 20 25 30 35 40 45 50 55 60 65}
I_OUT (A)
FIGURE 28. 3-PHASE CCM EFFICIENCY,
VID = 1.075V,
V_IN1 = 8V, V_IN2 = 12.6V AND
V_IN3 = 19V
1.10
1.08
1.06
1.04
1.02
1.00
0.98
0.96
0.94
0.92
0 5 10 15 20 25 30 35 40 45 50 55 60 65
I_OUT (A)
FIGURE 29. 3-PHASE CCM LOAD LINE, VID = 1.075V,
V_IN1 = 8V, V_IN2 = 12.6V AND
V_IN3 = 19V
95
90
V_IN = 8V
85
80
75
V_IN = 12V
V_IN = 19V
70
65
60
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
I_OUT(A)
FIGURE 30. 2-PHASE CCM EFFICIENCY,
VID = 0.875V,
V_IN1 = 8V, V_IN2 = 12.6V AND
V_IN3 = 19V
0.885
0.875
0.865
0.855
0.845
0.835
0.825 _{0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}
I_OUT (A)
FIGURE 31. 2-PHASE CCM LOAD LINE, VID = 0.875V,
V_IN1 = 8V, V_IN2 = 12.6V AND
V_IN3 = 19V
95
90
85
V_IN = 8V
80
75
70
V_IN = 12V
65
V_IN = 19V
60
0.1
1
10
100
I_OUT (A)
FIGURE 32. 1-PHASE DEM EFFICIENCY,
VID = 0.875V,
V_IN1 = 8V, V_IN2 = 12.6V AND
V_IN3 = 19V
32
0.885
0.875
0.865
0.855
0.845
0.835
0.825 _{0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15}
I_OUT (A)
FIGURE 33. 1-PHASE DEM LOAD LINE, VID = 0.875V,
V_IN1 = 8V, V_IN2 = 12.6V AND
V_IN3 = 19V
FN6891.2
February 25, 2010