MIC26400_11 Datasheet, PDF (6/27 Pages) Micrel Semiconductor – 5A Hyper Speed Control Synchronous DC/DC Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
10.0
8.0
6.0
VDD Operating Supply Current
vs. Temperature
VIN = 12V
VOUT = 1.2V
VDD = 5V
IOUT = 0A
SWITCHING
4.0
2.0
0.0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
VDD Shutdown Current
vs. Temperature
1
0.8
0.6
0.4
VIN = 12V
IOUT = 0A
VDD = 5V
0.2
VEN = 0V
0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
10.0
8.0
6.0
VIN Operating Supply Current
vs. Temperature
VIN = 12V
VOUT = 1.2V
VDD = 5V
IOUT = 0A
SWITCHING
4.0
2.0
0.0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
VIN Shutdown Current
vs. Temperature
10.0
8.0
6.0
4.0
VIN = 12V
2.0
VDD = 5V
IOUT = 0A
0.0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
0.808
0.804
0.800
Feedback Voltage
vs. Temperature
VIN = 12V
VOUT = 1.2V
VDD = 5V
IOUT = 0A
0.796
0.792
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
1.0%
0.8%
0.6%
Load Regulation
vs. Temperature
VIN = 12V
VOUT = 1.2V
VDD = 5V
IOUT = 0A to 5A
0.4%
0.2%
0.0%
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Switching Frequency
vs. Temperature
345
330
315
VIN = 12V
VOUT = 1.2V
VDD = 5V
IOUT = 0A
300
285
270
255
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
EN Bias Current
vs. Temperature
100
80
60
40
VIN = 12V
VOUT = 1.2V
20
VDD = 5V
0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
July 2011
6
MIC26400
VDD UVLO Threshold
vs. Temperature
2.8
2.7
Rising
2.6
Falling
2.5
2.4
VIN = 12V
2.3
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
Current Limit
vs. Temperature
25
20
15
10
VIN = 12V
5
VOUT = 1.2V
VDD = 5V
0
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
0.5%
0.4%
0.3%
Line Regulation
vs. Temperature
VIN = 6V to 26V
VOUT = 1.2V
VDD = 5V
0.2%
0.1%
0.0%
-50
-20 10 40 70 100 130
TEMPERATURE (°C)
M9999-070111-C