MIC26903ZA Datasheet, PDF (10/28 Pages) Micrel Semiconductor – 28V, 9A Hyper Speed Control Synchronous DC/DC Buck Regulator

Micrel, Inc.
MIC26903-ZA
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
VIN = 24V
2 ^{VOUT = 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 MIC26903-ZA while it was case mounted on a 5in² 4-layer,
0.62”, FR-4 PCB, with 2oz finish copper weight per layer. See the “Thermal Measurements” section for more details. Actual results will depend on the
size of the PCB, ambient temperature, and proximity to other heat emitting components.
May 29, 2013
10
Revision 1.0