MIC28512 Datasheet, PDF (8/34 Pages) Microchip Technology – 70V, 2A Synchronous Buck Regulator

MIC28512
5.3
5.2
5.1
5.0
4.9
4.8
VOU=T 5V
IOU=T 1A
FSW= 300kHz
4.7
5 10 15 20 25 30 35 40 45 50 55 60 65 70
INPUT VOLTAGE (V)
FIGURE 2-7:
Voltage.
Output Voltage vs. Input
1.6
1.5
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
-50
Rising
Falling
VIN= 12V
VDD= 5V
-25 0 25 50 75 100 125
TEMPERATURE (°C)
FIGURE 2-8:
Temperature.
Enable Threshold vs.
600
550
500
450
400
350
300
250
200
150
100
0.0
FIGURE 2-9:
Output Current.
VIN= 12V
VOU=T 5V
0.5
1.0
1.5
2.0
OUTPUT CURRENT (A)
Switching Frequency vs.
.
5.2
5.1
5.0
4.9
4.8
0.0
FIGURE 2-10:
Current.
VIN= 12V
VOU=T 5V
0.5
1.0
1.5
2.0
OUTPUT CURRENT (A)
Output Voltage vs. Output
100
90
5.0V
3.3V
80
70
60
50
40
30
20
FSW= 300kHz
10
0.01
0.1
1
10
OUTPUT CURRENT (A)
FIGURE 2-11:
Efficiency (VIN = 12V) vs.
Output Current MIC28512-1.
100
90
80
70
60
50
40
30
20
10
0.01
5.0V
3.3V
FSW= 300kHz
0.1
1
10
OUTPUT CURRENT (A)
FIGURE 2-12:
Efficiency (VIN = 24V) vs.
Output Current MIC28512-1.
DS20005524A-page 8
 2016 Microchip Technology Inc.