MIC26601 Datasheet, PDF (9/30 Pages) Micrel Semiconductor – 28V, 6A Hyper Speed Control™ Synchronous DC/DC Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
100
95
90
85
80
75
70
65
60
55
50
0
Efficiency (V_IN = 12V)
vs. Output Current
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
0.8V
12345678
OUTPUT CURRENT (A)
IC Power Dissipation (V_IN = 12V)
2.5
vs. Output Current
V_IN = 12V
V_OUT = 0.8,V, 1.0V, 1.2V, 1.5V, 1.8V,2.5V, 3.3V, 5.0V
2.0
1.5
1.0
5.0V
0.8V
0.5
0.0
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
Efficiency (V_IN = 24V)
vs. Output Current
95
5.0V
90
3.3V
2.5V
85
1.8V
1.5V
80
1.2V
75
1.0V
0.9V
70
0.8V
65
60
55
50
0 1 2 3 45 6 7 8
OUTPUT CURRENT (A)
IC Power Dissipation (V_IN = 24V)
2.5
vs. Output Current
V_IN = 24V
V_OUT = 0.8,V, 1.0V, 1.2V, 1.5V, 1.8V,2.5V, 3.3V, 5.0V
2.0
1.5
1.0
5.0V
0.5
0.8V
0.0
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
MIC26601
Die Temperature* (V_IN = 12V)
vs. Output Current
60
50
40
30
20
V_IN = 12V
V_OUT = 1.8V
10
0
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
Die Temperature* (V_IN = 24V)
vs. Output Current
60
50
40
30
20
V_IN = 24V
V_OUT = 1.8V
10
0
0
1
2
3
4
5
6
OUTPUT CURRENT (A)
Thermal Derating*
vs. Ambient Temperature
12
10
0.8V
8
6
1.5V
4
V_IN = 5V
2
V_OUT = 0.8, 1.2, 1.5V
0
-50 -25
0
25 50 75 100 125
AMBIENT TEMPERATURE (°C)
Thermal Derating*
vs. Ambient Temperature
12
10
1.8V
8
6
3.3V
4
V_IN = 5V
2
V_OUT = 1.8, 2.5, 3.3V
0
-50 -25 0 25 50 75 100 125
AMBIENT TEMPERATURE (°C)
Thermal Derating*
vs. Ambient Temperature
12
10
0.8V
8
1.8V
6
4
V_IN = 12V
V_OUT = 0.8, 1.2, 1.8V
2
0
-50 -25
0
25 50 75 100 125
AMBIENT TEMPERATURE (°C)
July 2011
9
M9999-071311-A