MIC26901 Datasheet, PDF (10/30 Pages) Micrel Semiconductor – 28V, 9A Hyper Speed Control™ Synchronous DC/DC Buck Regulator

Micrel, Inc.
Typical Characteristics (Continued)
Thermal Derating*
vs. Ambient Temperature
14
12
2.5V
10
5V
8
6
4 _{VIN = 12V}
2 ^{VOUT = 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
V_IN = 24V
2 ^{VOUT = 0.8, 1.2, 2.5V}
0
-50 -25
0
25 50 75 100 125
AMBIENT TEMPERATURE (°C)
MIC26901
Die Temperature* : The temperature measurement was taken at the hottest point on the MIC26901 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
10
M9999-071311-A