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MIC26603ZA_14 Datasheet, PDF (7/29 Pages) Micrel Semiconductor – 28V, 6A Hyper Speed Control Synchronous DC/DC Buck Regulator
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Micrel, Inc.
Typical Characteristics (Continued)
VIN Operating Supply Current
vs. Temperature
20
16
12
8
4
0
-50 -25
VIN = 12V
VOUT = 1.8V
IOUT = 0A
SWITCHING
0 25 50 75 100 125
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature
0.608
0.604
0.600
0.596
VIN = 12V
VOUT = 1.8V
IOUT = 0A
0.592
-50 -25 0
25 50 75 100 125
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
700
VIN = 12V
VOUT = 1.8V
IOUT = 0A
650
600
550
500
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
VIN Shutdown Current
vs. Temperature
20
VIN = 12V
IOUT = 0A
15
VEN = 0V
10
5
0
-50 -25 0 25 50 75 100 125
TEMPERATURE (°C)
Load Regulation
vs. Temperature
1.0%
0.5%
0.0%
-0.5%
-1.0%
-50
VIN = 12V
VOUT = 1.8V
IOUT = 0A to 6A
-25 0 25 50 75 100 125
TEMPERATURE (°C)
VDD
vs. Temperature
6
5
4
3
2
-50 -25
VIN = 12V
IOUT = 0A
0
25 50 75 100 125
TEMPERATURE (°C)
MIC26603-ZA
VDD UVLO Threshold
vs. Temperature
5
Rising
4
Falling
3
2
1
0
-50 -25
Hyst
0
25 50 75 100 125
TEMPERATURE (°C)
0.4%
0.3%
Line Regulation
vs. Temperature
VIN = 4.5V to 28V
VOUT = 1.8V
IOUT = 0A
0.2%
0.1%
0.0%
-50 -25 0
25 50 75 100 125
TEMPERATURE (°C)
Current Limit
vs. Temperature
25
20
15
10
5
0
-50 -25
VIN = 12V
VOUT = 1.8V
0 25 50 75 100 125
TEMPERATURE (°C)
July 16, 2014
7
Revision 1.1
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