MIC45205-1(2014) 查看數據表（PDF） - Micrel
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MIC45205-1 Datasheet PDF : 31 Pages
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Micrel, Inc.
Typical Characteristics
VIN Operating Supply Current
vs. Temperature (MIC45205-1)
600
480
360
240
VIN = 12V
VOUT = 1.8V
120
IOUT = 0A
fSW = 600kHz
0
-50
-25 0 25 50 75
TEMPERATURE (°C)
100 125
VDD Supply Voltage
vs. Temperature
10
VIN = 12V
8
VOUT = 1.8V
IOUT = 0A
6
4
2
0
-50 -25
0 25 50 75 100 125
TEMPERATURE (°C)
MIC45205
Enable Threshold
vs. Temperature
2.0
1.6
RISING
1.2
FALLING
0.8
0.4
VIN = 12V
VOUT = 1.8V
0.0
-50
-25 0 25 50 75
TEMPERATURE (°C)
100 125
EN Bias Current
vs. Temperature
10
VIN = 12V
8
VOUT = 1.8V
IOUT = 0A
6
4
2
0
-50 -25 0
25 50 75 100 125
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature
1.1
1.0
0.9
0.8
0.7
0.6
0.5
-50 -25
VIN = 12V
VOUT = 1.8V
IOUT = 0A
0 25 50 75 100 125
TEMPERATURE (°C)
Output Voltage
vs. Temperature
2.1
2.0
1.9
1.8
1.7
1.6
1.5
-50
VIN = 12V
VOUT= 1.8V
IOUT = 0A
-25 0 25 50 75 100 125
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
900
800
700
600
500
400
VIN = 12V
VOUT = 1.8V
IOUT = 2A
300
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
20
18
16
14
12
10
8
6
4
2
0
-50
Output Peak Current Limit
vs. Temperature
VIN =12V
VOUT = 1.8V
fSW = 600kHz
-25 0 25 50 75 100 125
TEMPERATURE (°C)
April 15, 2014
6
Revision 1.0
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