MIC26950 MICREL, MIC26950 Datasheet - Page 7

• Manufacturer Part Number: MIC26950
• Description: 12A Hyper Speed Control Synchronous DC-DC Buck Regulator
• Manufacturer: MICREL

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Micrel, Inc.
Typical Characteristics (Continued)
September 2010
345
330
315
300
285
270
255
10.0
10.0
0.808
0.806
0.804
0.802
0.800
0.798
0.796
0.794
0.792
8.0
6.0
4.0
2.0
0.0
8.0
6.0
4.0
2.0
0.0
-50
-50
-50
-50
V
V
IN
DD
-20
-20
-20
Switching Frequency
Operating Supply Current
-20
Operating Supply Current
vs. Temperature
vs. Temperature
TEMPERATURE (°C)
Feedback Voltage
vs. Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
10
10
10
10
40
40
40
40
V
V
V
I
SWITCHING
V
V
V
I
SWITCHING
OUT
V
V
V
I
OUT
OUT
70
IN
OUT
DD
IN
OUT
DD
70
70
70
IN
OUT
DD
V
V
V
I
= 12V
= 12V
OUT
= 0A
= 12V
= 5V
= 0A
= 5V
= 0A
= 5V
IN
OUT
DD
= 1.2V
= 1.2V
= 1.2V
= 12V
= 5V
= 0A
= 1.2V
100
100
100
100
130
130
130
130
100
0.8
0.6
0.4
0.2
10.0
1.0%
0.8%
0.6%
0.4%
0.2%
0.0%
80
60
40
20
8.0
6.0
4.0
2.0
0.0
0
1
0
-50
-50
-50
-50
V
I
V
V
OUT
-20
-20
IN
DD
EN
-20
-20
V
= 12V
V
= 0A
= 0V
= 5V
DD
IN
vs. Temperature
EN Bias Current
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
Shutdown Current
Shutdown Current
vs. Temperature
10
Load Regulation
10
10
10
40
40
40
40
7
V
V
V
I
OUT
V
V
I
70
OUT
IN
OUT
DD
70
70
V
V
V
70
IN
DD
= 12V
IN
OUT
DD
= 0A to 12A
= 5V
= 12V
= 1.2V
= 5V
= 0A
= 12V
= 5V
= 1.2V
100
100
100
100
130
130
130
130
2.8
2.7
2.6
2.5
2.4
2.3
40
35
30
25
20
15
10
0.5%
0.4%
0.3%
0.2%
0.1%
0.0%
5
0
-50
-50
-50
-20
V
V
V
-20
IN
OUT
DD
-20
= 12V
V
= 5V
= 1.2V
DD
vs. Temperature
TEMPERATURE (°C)
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
vs. Temperature
10
Current Limit
10
Line Regulation
UVLO Threshold
10
Rising
Falling
40
40
40
M9999-091710-C
V
V
V
IN
OUT
DD
70
70
V
70
IN
=6V to 26V
= 5V
= 1.2V
= 12V
100
100
MIC26950
100
130
130
130