MIC28304 Datasheet, PDF (11/39 Pages) Micrel Semiconductor – 70V 3A Power Module

Micrel, Inc.
Typical Characteristics (Continued)
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0.0
-50
PVDD Voltage
vs. Temperature
I_PVDD = 10mA
I_PVDD = 40mA
VIN = 12V
I_OUT = 0A
F_SW = 600kHz
-25 0 25 50 75 100 125
TEMPERATURE (°C)
4.4
4.3
4.2
4.1
4.0
3.9
3.8
3.7
3.6
3.5
3.4
3.3
-50
PVDD UVLO Threshold
vs. Temperature
RISING
FALLING
V_IN = 12V
I_OUT = 0A
F_SW = 600kHz
-25 0 25 50 75
TEMPERATURE (°C)
100 125
EN Bias Current
vs. Temperature
100
VIN = 12V
80
V_EN = 0V
F_SW = 600kHz
60
40
20
0
-50 -25 0
25 50 75 100 125
TEMPERATURE (°C)
Enable Threshold
vs. Temperature
1.5
VIN = 12V
1.4
1.3
RISING
V_OUT = 5V
F_SW = 600kHz
1.2
1.1
1.0
FALLING
0.9
0.8
0.7
0.6
0.5
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature (MIC28304-2)
0.812
0.808
0.804
0.800
0.796
0.792
-50 -25
V_IN = 12V
V_OUT = 5.0V
I_OUT = 0A
F_SW = 600kHz
0 25 50 75 100 125
TEMPERATURE (°C)
Load Regulation
vs. Temperature (MIC28304-2)
0.4%
0.3%
0.2%
VIN = 12V
V_OUT = 5.0V
I_OUT = 0A TO 3A
F_SW = 600kHz
0.1%
0.0%
-0.1%
-0.2%
-0.3%
-50
-25 0 25 50 75
TEMPERATURE (°C)
100 125
MIC28304
Output Peak Current Limit
vs. Temperature
10
8
6
4
VIN = 12V
2
V_OUT = 5.0V
F_SW = 600kHz
0
-50
-25 0 25 50 75
TEMPERATURE (°C)
100 125
VIN Operating Supply Current
vs. Temperature (MIC28304-2)
40
36
32
28
24
20
16
VIN = 12V
12
V_OUT = 5.0V
I_OUT = 0A
8
F_SW = 600kHz
4
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
1.00%
0.50%
Line Regulation
vs. Temperature (MIC28304-2)
VIN = 7V TO 70V
V_OUT = 5.0V
I_OUT = 0A
F_SW = 600kHz
0.00%
-0.50%
-1.00%
-50
-25 0 25 50 75 100 125
TEMPERATURE (°C)
March 25, 2014
11
Revision 1.1