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componentes Descripción
Lista de partido
ML4890
High Efficiency, Low Ripple Boost Regulator
Micro Linear Corporation
ML4890 Datasheet PDF : 12 Pages
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ML4890
TABLE 1. MAXIMUM OUTPUT CURRENT AND EFFICIENCY
ML4890-T
ML4890-3
V
IN
L = 10
µ
H
1.0
1.5
2.0
L = 15
µ
H
1.0
1.5
2.0
2.5
2.8
L = 22
µ
H
1.0
1.5
2.0
2.5
2.8
L = 33
µ
H
1.0
1.5
2.0
2.5
2.8
L = 47
µ
H
1.0
1.5
2.0
2.5
2.8
L = 68
µ
H
1.0
1.5
2.0
2.5
2.8
I
OUT
(mA) EFFICIENCY PERCENTAGE
30.6
73.5
70.7
72.0
80.0
70.3
23.8
78.7
56.5
77.3
80.0
74.9
80.0
74.0
80.0
73.7
18.4
82.0
44.2
81.1
76.6
77.9
80.0
76.9
80.0
76.7
13.0
85.7
32.4
85.1
56.6
82.7
80.0
80.4
80.0
80.1
9.8
87.4
23.3
87.2
41.1
85.8
62.9
83.7
77.4
82.6
7.9
88.4
18.8
88.9
33.4
87.6
51.0
86.0
64.3
84.6
V
IN
L = 10
µ
H
1.0
1.5
2.0
L = 15
µ
H
1.0
1.5
2.0
2.5
3.0
L = 22
µ
H
1.0
1.5
2.0
2.5
3.0
L = 33
µ
H
1.0
1.5
2.0
2.5
3.0
L = 47
µ
H
1.0
1.5
2.0
2.5
3.0
L = 68
µ
H
1.0
1.5
2.0
2.5
3.0
I
OUT
(mA)
29.6
71.4
100.0
23.0
54.7
89.8
100.0
100.0
16.2
41.4
75.6
100.0
100.0
10.9
30.4
55.8
82.5
100.0
9.1
22.7
41.9
63.3
89.6
7.7
17.9
32.1
48.8
69.6
EFFICIENCY PERCENTAGE
73.8
73.7
71.9
80.4
78.8
76.1
74.7
74.1
82.1
82.6
80.5
77.7
77.1
85.0
86.0
84.7
82.3
80.3
87.1
87.9
87.4
85.6
83.1
89.3
89.2
88.3
87.2
85.9
10
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