MIC26903 MICREL [Micrel Semiconductor], MIC26903 Datasheet - Page 7

• Manufacturer Part Number: MIC26903
• Description: 28V, 9A Hyper Light Load Synchronous DC/DC Buck Regulator
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Typical Characteristics (Continued)
July 2011
0.808
0.804
0.800
0.796
0.792
0.788
700
650
600
550
500
1.0
0.8
0.6
0.4
0.2
0.0
-50
-50
-50
V
IN
-25
-25
Operating Supply Current
-25
Switching Frequency
V
V
I
SWITCHING
OUT
IN
OUT
vs. Temperature
vs. Temperature
Feedback Voltage
= 12V
TEMPERATURE (°C)
vs. Temperature
= 0A
= 1.8V
TEMPERATURE (°C)
0
0
TEMPERATURE (°C)
0
25
25
25
50
50
50
V
V
I
OUT
V
V
I
IN
OUT
OUT
IN
OUT
= 12V
= 2A
= 12V
75
= 1.8V
75
= 2A
75
= 1.8V
100
100
100
125
125
125
10
-0.1%
-0.2%
6
5
4
3
2
0.2%
0.1%
0.0%
8
6
4
2
0
-50
-50
-50
-25
-25
V
-25
IN
vs. Temperature
vs. Temperature
TEMPERATURE (°C)
Shutdown Current
TEMPERATURE (°C)
0
Load Regulation
vs. Temperature
0
TEMPERATURE (°C)
0
V
25
25
DD
25
7
V
V
I
50
50
OUT
V
V
I
OUT
IN
OUT
50
IN
OUT
= 12V
=2A to 9A
= 12V
=0A
= 1.8V
= 1.8V
V
I
V
OUT
75
75
IN
EN
75
= 12V
= 0A
= 0V
100
100
100
125
125
125
5
4
3
2
1
0
-0.1%
-0.2%
20
16
12
0.2%
0.1%
0.0%
8
4
0
-50
-50
-50
-25
-25
V
-25
DD
vs. Temperature
vs. Temperature
Hyst
Rising
Falling
TEMPERATURE (°C)
vs. Temperature
TEMPERATURE (°C)
0
Line Regulation
Current Limit
UVLO Threshold
0
TEMPERATURE (°C)
0
25
25
25
V
V
I
OUT
IN
OUT
50
M9999-071311-A
50
= 4.5V to 28V
= 2A
50
= 1.8V
V
V
IN
OUT
= 12V
75
75
= 1.8V
MIC26903
75
100
100
100
125
125
125