MIC28304 Datasheet, PDF (12/39 Pages) Micrel Semiconductor – 70V 3A Power Module

Micrel, Inc.
Typical Characteristics (Continued)
Line Regulation
vs. Temperature (MIC28304-2)
1.0%
0.5%
0.0%
-0.5%
VIN = 7V TO 70V
V_OUT = 5.0V
I_OUT = 3A
F_SW = 600kHz
-1.0%
-50 -25 0 25 50 75
TEMPERATURE (°C)
100 125
Switching Frequency
vs. Temperature (MIC28304-2)
700
650
600
550
500
450
400
350
300
250
200
150
100
-50
VIN = 12V
V_OUT = 5V
I_OUT = 0A
-25 0 25 50 75
TEMPERATURE (°C)
100 125
Line Regulation
vs. Output Current (MIC28304-2)
0.4%
0.4%
0.3%
0.3%
0.2%
0.2%
0.1%
0.1%
0.0%
0.0
VIN = 12V to 70V
V_OUT = 5.0V
F_SW = 600kHz
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
Efficiency (VIN =12V)
vs. Output Current (MIC28304-2)
100
5.0V
90
3.3V
80
2.5V
70
1.8V
1.2V
60
0.8V
50
40
F_SW = 600kHz
30
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
Efficiency (VIN = 24V)
vs. Output Current (MIC28304-2)
100
90
F_SW = 600kHz
80
70
60
5.0V
3.3V
2.5V
1.8V
1.2V
0.8V
50
40
30
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
Efficiency (VIN = 38V)
vs. Output Current (MIC28304-2)
100
90
F_SW = 600kHz
80
5.0V
3.3V
70
2.5V
1.8V
60
1.2V
50
0.8V
40
30
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
MIC28304
Feedback Voltage
vs. Output Current (MIC28304-2)
0.808
0.804
0.800
0.796
0.792
0.0
VIN = 12V
V_OUT = 5.0V
F_SW = 600kHz
0.5 1.0 1.5 2.0 2.5 3.0
OUTPUT CURRENT (A)
Efficiency (VIN = 18V)
vs. Output Current (MIC28304-2)
100
F_SW = 600kHz
90
80
70
60
5.0V
3.3V
2.5V
1.8V
1.2V
0.8V
50
40
30
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
Efficiency (VIN = 48V)
vs. Output Current (MIC28304-2)
100
90
F_SW = 600kHz
80
5.0V
70
3.3V
2.5V
60
1.8V
50
1.2V
0.8V
40
30
0 0.5 1 1.5 2 2.5 3 3.5 4
OUTPUT CURRENT (A)
March 25, 2014
12
Revision 1.1