MIC28512 Datasheet, PDF (7/34 Pages) Microchip Technology – 70V, 2A Synchronous Buck Regulator

MIC28512
2.0 TYPICAL PERFORMANCE CURVES
Note:
The graphs and tables provided following this note are a statistical summary based on a limited number of
samples and are provided for informational purposes only. The performance characteristics listed herein
are not tested or guaranteed. In some graphs or tables, the data presented may be outside the specified
operating range (e.g., outside specified power supply range) and therefore outside the warranted range.
5.0
4.0
IV_OOUUTT==05AV
F_SW = 300kHz
3.0
2.0
1.0
0.0
5 10 15 20 25 30 35 40 45 50 55 60 65 70
INPUT VOLTAGE (V)
FIGURE 2-1:
V_IN Operating Supply
Current vs. Input Voltage (MIC28512-1).
4.9
Rising
4.7
4.5
4.3
4.1
Falling
3.9
3.7
3.5
3.3
-50 -25
VIN=12V
IOUT= 0A
0 25 50 75
TEMPERATURE (°C)
100 125
FIGURE 2-4:
Temperature.
VIN ULVO Threshold vs.
35.0
30.0
25.0
20.0
15.0
10.0
5.0
0.0
5.0
FIGURE 2-2:
Input Voltage.
18.0 31.0 44.0 57.0 70.0
INPUT VOLTAGE (V)
V_IN Shutdown Current vs.
6.0
VIN= 12V
VOU=T 5.0V
5.0 ^{FSW= 300kHz}
4.0
3.0
2.0
1.0
0.0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
FIGURE 2-5:
Output Peak Current Limit
vs. Temperature.
1.50
Rising
1.20
Falling
0.90
0.60
0.30
Hyst
0.00
5 10 15 20 25 30 35 40 45 50 55 60 65 70
INPUT VOLTAGE (V)
FIGURE 2-3:
Voltage.
Enable Threshold vs. Input
0.812
0.808
VIN= 12V
VOU=T 5.0V
IOU=T 0A
0.804
0.800
0.796
0.792
-50
FIGURE 2-6:
Temperature
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Feedback Voltage vs.
 2016 Microchip Technology Inc.
DS20005524A-page 7