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MIC28304 Datasheet(PDF) 7 Page - Micrel Semiconductor

Part # MIC28304
Description  70V 3A Power Module
PDF  39 Pages
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Manufacturer  MICREL [Micrel Semiconductor]
Direct Link  http://www.micrel.com
Logo MICREL - Micrel Semiconductor

MIC28304 Datasheet(HTML) 7 Page - Micrel Semiconductor

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Micrel, Inc.
MIC28304
Typical Characteristics
− 275kHz Switching Frequency
Table 1. Recommended Component Values for 275kHz Switching Frequency
VOUT
VIN
R3
(Rinj)
R19
R15
R1
(Top Feedback
Resistor)
R11
(Bottom Feedback
Resistor)
C10
(Cinj)
C12
(Cff)
COUT
5V
7V to 18V
16.5k
Ω
75k
Ω
3.57k
10kΩ
1.9
kΩ
0.1µF
2.2nF
2x47µF/6.3V
5V
18V to 70V
39.2k
Ω
75k
Ω
3.57k
10kΩ
1.9
kΩ
0.1µF
2.2nF
2x 47µF/6.3V
3.3V
5V to 18V
16.5k
Ω
75k
Ω
3.57k
10kΩ
3.24
kΩ
0.1µF
2.2nF
2x 47µF/6.3V
3.3V
18V to 70V
39.2k
Ω
75k
Ω
3.57k
10kΩ
3.24
kΩ
0.1µF
2.2nF
2x 47µF/6.3V
50
55
60
65
70
75
80
85
90
95
100
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT (A)
Efficiency vs. Output Current
(MIC28304-1)
V
OUT = 5V
F
SW = 275kHz
48VIN
24VIN
12VIN
36VIN
30
40
50
60
70
80
90
100
0
0.5
1
1.5
2
2.5
3
OUTPUT CURRENT (A)
Efficiency vs. Output Current
(MIC28304-2)
V
OUT = 5V
F
SW = 275kHz
48VIN
24VIN
12VIN
36VIN
0
1
2
3
25
40
55
70
85
100
115
MAXIMUM AMBIENT TEMPERATURE
(°C)
Thermal Derating
V
OUT = 5V
F
SW = 275kHz
T
j_MAX =125°C
MIC28304-2
VIN = 12V
VIN = 24V
VIN = 48V
March 25, 2014
7
Revision 1.1



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