参数资料
型号: ISL62882IRTZ
厂商: Intersil
文件页数: 35/42页
文件大小: 0K
描述: IC REG PWM 2PHASE BUCK 40TQFN
标准包装: 60
应用: 控制器,Intel IMVP-6.5?
输入电压: 5 V ~ 25 V
输出数: 1
输出电压: 0.013 V ~ 1.5 V
工作温度: -40°C ~ 100°C
安装类型: 表面贴装
封装/外壳: 40-WFQFN 裸露焊盘
供应商设备封装: 40-TQFN-EP(5x5)
包装: 管件
ISL62882, ISL62882B
Typical Performance
92
90
88
86
1.10
1.08
1.06
84
82
80
78
V IN = 8V
VIN = 12V
V IN = 19V
1.04
1.02
1.00
0.98
76
74
72
70
0.96
0.94
0.92
0
5
10
15
20
25
30
35
40
45
50
55
0
5
10
15
20
25
30 35
40
45
50
55
60
65
I OUT (A)
FIGURE 32. 2-PHASE CCM EFFICIENCY, VID = 1.075V,
V IN1 = 8V, V IN2 = 12.6V AND V IN3 = 19V
90
I OUT (A)
FIGURE 33. 2-PHASE CCM LOAD LINE, VID = 1.075V,
V IN1 = 8V, V IN2 = 12.6V AND V IN3 = 19V
85
80
75
70
65
60
55
V IN = 8V
V IN = 12V
V IN = 19V
0.885
0.875
0.865
0.855
0.845
0.835
0.825
0.1
1
10
100
0
1
2
3
4
5
6
7 8 9
10 11 12 13 14 15
I OUT (A)
FIGURE 34. 1-PHASE DEM EFFICIENCY, VID = 0.875V,
DPRSLPVR IS ASSERTED FOR I OUT < 3A, V IN1 = 8V,
V IN2 = 12.6V AND V IN3 = 19V. SOLID LINES:
ISL62882 EFFICIENCY, DOTTED LINES: WOULD-BE
EFFICIENCY IF LGATE1b WAS NOT TURNED OFF IN
DPRSLPVR MODE
FIGURE 36. 2-PHASE CPU MODE SOFT-START, V IN = 19V,
I O = 0A, VID = 0.95V, Ch1: PHASE1, Ch2: V O , Ch3:
PHASE2
35
I OUT (A)
FIGURE 35. 1-PHASE DEM LOAD LINE, VID = 0.875V, DPRSLPVR
IS ASSERTED FOR I OUT < 3A
V IN1 = 8V, V IN2 = 12.6V AND V IN3 = 19V
FIGURE 37. 2-PHASE CPU MODESHUT DOWN, V IN = 19V,
I O = 1A, VID = 0.95V, Ch1: PHASE1, Ch2: V O , Ch3:
PHASE2
FN6890.4
June 21, 2011
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