MIC26603 MICREL [Micrel Semiconductor], MIC26603 Datasheet - Page 8

• Manufacturer Part Number: MIC26603
• Description: 28V, 6A Hyper Light Load Synchronous DC/DC Buck Regulator
• Manufacturer: MICREL [Micrel Semiconductor]

Micrel, Inc.
Typical Characteristics (Continued)
July 2011
100
-0.5%
-1.0%
100
1.0%
0.5%
0.0%
90
80
70
60
50
95
90
85
80
75
70
65
60
55
50
0
0
0
V
1
IN
1
Efficiency (V
= 5V
vs. Output Current
1
vs. Output Current
vs. Output Current
12V
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
Line Regulation
OUTPUT CURRENT (A)
2
IN
24V
Efficiency
2
IN
2
3
3
4
3
V
V
IN
IN
OUT
V
= 4.6V to 28V
= 5V)
5
OUT
= 1.8V
4
4
= 1.8V
6
5
5
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
0.8V
7
6
6
8
0.808
0.804
0.800
0.796
0.792
700
650
600
550
500
2.5
2.0
1.5
1.0
0.5
0.0
0
1
V
V
0
IN
OUT
= 5V
= 0.8,V, 1.0V, 1.2V, 1.5V, 1.8V,2.5V, 3.3V
1
Switching Frequency
IC Power Dissipation
1
2
vs. Output Current
vs. Output Current
vs. Output Current
Feedback Voltage
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
2
2
3.3V
3
8
3
3
4
V
V
IN
OUT
4
4
= 12V
= 1.8V
V
V
IN
OUT
0.8V
5
= 12V
5
= 1.8V
5
6
6
6
60
50
40
30
20
10
1.819
1.814
1.810
1.805
1.800
1.796
1.791
1.787
1.782
4.6
4.2
3.8
3.4
0
5
3
0
0
0
Die Temperature* (V
Output Voltage (V
1
1
vs. Output Current
1
vs. Output Current
vs. Output Current
V
V
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
IN
FB
2
OUTPUT CURRENT (A)
Output Voltage
= 5V
< 0.8V
2
2
3
3
4
3
M9999-071311-A
V
V
IN
OUT
5
V
V
= 12V
IN
IN
IN
OUT
4
= 1.8V
4
= 5V)
MIC26603
= 5V
= 5V)
= 1.8V
6
5
5
7
T
25ºC
85ºC
125ºC
A
6
8
6