MIC26600_1107 Datasheet, PDF (9/28 Pages) Micrel Semiconductor – 7A Hyper Speed ControlTM Synchronous DC-DC Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
Efficiency (VIN = 5V)
vs. Output Current
100
95
90
3.3V
2.5V
85
1.8V
1.5V
1.2V
80
1.0V
75
0.9V
0.8V
70
01234 56789
OUTPUT CURRENT (A)
Efficiency (VIN = 12V)
vs. Output Current
100
95
5.0V
90
3.3V
2.5V
85
1.8V
1.5V
80
1.2V
1.0V
0.9V
75
0.8V
70
0123456789
OUTPUT CURRENT (A)
MIC26600
Efficiency (VIN = 24V)
vs. Output Current
95
5.0V
90
3.3V
2.5V
85
1.8V
1.5V
80
1.2V
1.0V
0.9V
75
0.8V
70
0123456789
OUTPUT CURRENT (A)
Thermal Derating*
vs. Ambient Temperature
14
12
0.8V
10
8
1.5V
6
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
14
12
1.8V
10
8
3.3V
6
4
2 ^{VIN = 5V}
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
14
12
0.8V
10
8
1.8V
6
4
2 ^{VIN = 12V}
V_OUT = 0.8, 1.2, 1.8V
0
-50 -25
0
25
50
75 100 125
AMBIENT TEMPERATURE (°C)
Thermal Derating*
vs. Ambient Temperature
14
12
2.5V
10
8
5V
6
4
2 ^{VIN = 12V}
V_OUT = 2.5, 3.3, 5V
0
-50 -25
0
25 50 75 100 125
AMBIENT TEMPERATURE (°C)
Thermal Derating*
vs. Ambient Temperature
14
12
0.8V
10
8
2.5V
6
4
2 ^{VIN = 24V}
V_OUT = 0.8, 1.2, 2.5V
0
-50 -25
0
25 50 75 100 125
AMBIENT TEMPERATURE (°C)
Die Temperature* : The temperature measurement was taken at the hottest point on the MIC26600 case mounted on a 5 square inch 4 layer, 0.62”,
FR-4 PCB with 2oz finish copper weight per layer, see Thermal Measurement section. Actual results will depend upon the size of the PCB, ambient
temperature and proximity to other heat emitting components.
July 2011
9
M9999-070111-C