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MIC4782 Datasheet, PDF (5/23 Pages) Micrel Semiconductor – 1.8 MHz Dual 2A Integrated Switch Buck Regulator
◁
Micrel, Inc.
Typical Characteristics
3.3VIN, 1.0VOUT Efficiency
80
78
76
74
72
70
68
66
64
3.0Vin
3.3Vin
62
3.6Vin
60
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
5.0VIN, 1.2VOUT Efficiency
84
82
80
78
76
74
72
70
68
4.5Vin
66
5.0Vin
5.5Vin
64
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
3.3VIN, 1.8VOUT Efficiency
92
90
88
86
84
82
80
78
76
3.0Vin
3.3Vin
74
3.6Vin
72
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
5.0VIN, 2.5VOUT Efficiency
96
94
92
90
88
86
84
82
80
4.5Vin
5.0Vin
78
5.5Vin
76
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
August 2009
5.0VIN, 1.0VOUT Efficiency
80
78
76
74
72
70
68
66
64
4.5Vin
5.0Vin
62
5.5Vin
60
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
3.3VIN, 1.5VOUT Efficiency
88
86
84
82
80
78
76
74
72
3.0Vin
3.3Vin
70
3.6Vin
68
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
5.0VIN, 1.8VOUT Efficiency
92
90
88
86
84
82
80
78
76
4.5Vin
5.0Vin
74
5.5Vin
72
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
5.0VIN, 3.3VOUT Efficiency
100
98
96
94
92
90
88
86
84
4.5Vin
5.0Vin
82
5.5Vin
80
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
5
MIC4782
3.3VIN, 1.2VOUT Efficiency
84
82
80
78
76
74
72
70
68
3.0Vin
3.3Vin
66
3.6Vin
64
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
5.0VIN, 1.5VOUT Efficiency
88
86
84
82
80
78
76
74
72
4.5Vin
5.0Vin
70
5.5Vin
68
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
3.3VIN, 2.5VOUT Efficiency
96
94
92
90
88
86
84
82
80
3.0Vin
3.3Vin
78
3.6Vin
76
0
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
Load Regulation
0.615
0.610
0.605
0.600
0.595
0
Vin=3.3V
0.4
0.8
1.2
1.6
2
OUTPUT CURRENT (A)
M9999-081709-D
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