MIC24053 Datasheet, PDF (9/30 Pages) Micrel Semiconductor – 12V, 9A High-Efficiency Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
100
95
90
85
80
75
70
65
60
55
50
0
Efficiency (VIN = 12V)
vs. Output Current
5.0V
3.3V
2.5V
1.8V
1.5V
1.2V
1.0V
0.9V
0.8V
VIN = 12V
2
4
6
8
10
12
OUTPUT CURRENT (A)
IC Power Dissipation (VIN = 12V)
vs. Output Current
4.0
3.5
VIN = 12V
3.0
2.5
VOUT = 5V
2.0
1.5
1.0
VOUT = 0.8V
0.5
0.0
0
1.5
3
4.5
6
7.5
9
OUTPUT CURRENT (A)
MIC24053
Die Temperature* : The temperature measurement was taken at the hottest point on the MIC24053 case mounted on a 5in², 4 layer, 0.62”, FR-4 PCB
with 2oz finish copper weight per layer; see the Thermal Measurements section. Actual results depend on the size of the PCB, ambient temperature, and
proximity to other heat-emitting components.
November 2012
9
M9999-110712-A