Datasheet

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1 oz. Copper
Power Plane
1 oz. Copper
Ground Plane
0.21 mm
0.21 mm
1
10
01020
− Power Dissipation Limit − W
P
D
R
θ
SA
− Heatsink Thermal Resistance − °C/W
No Heatsink
T
A
= 55°C
Natural Convection
Air Flow = 150 LFM
Air Flow = 250 LFM
Air Flow = 500 LFM
TPS75801 , , TPS758A01
TPS75815 , TPS75818
TPS75825 , TPS75833
SLVS330F – JUNE 2001 – REVISED APRIL 2007
THERMAL INFORMATION (continued)
Figure 24. TO-220 Thermal Resistance
From the data in Figure 23 and rearranging Equation 6 , the maximum power dissipation for a different heatsink
R
Θ SA
and a specific ambient temperature can be computed (see Figure 25 ).
Figure 25. Power Dissipation vs Heatsink Thermal Resistance
15
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