LP3965EMP-ADJ Datasheet, PDF (16/36 Pages) Texas Instruments – LP3962/LP3965 1.5A Fast Ultra Low Dropout Linear Regulators

LP3962, LP3965
SNVS066H – MAY 2000 – REVISED APRIL 2013
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Figure 25. Maximum power dissipation vs ambient temperature for SFM/TO-263 package
Figure 26 shows a curve for the θ_JA of SOT-223 package for different copper area sizes, using a typical PCB with
1 ounce copper and no solder mask over the copper area for heat sinking.
Figure 26. θ_JA vs Copper(1 Ounce) Area for SOT-223 package
Figure 27 through Figure 35 show different layout scenarios for SOT-223 package.
Figure 27. SCENARIO A, θ_JA = 148°C/W
Figure 28. SCENARIO B, θ_JA = 125°C/W
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