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| LP38512_15 Datasheet, PDF (13/21 Pages) Texas Instruments – 1.5A Fast-Transient Response Low-Dropout Linear Voltage Regulator with Error Flag | |||
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www.ti.com
LP38512
SNOSAU7F â NOVEMBER 2007 â REVISED APRIL 2013
Figure 25. θJA vs Copper (1 Ounce) Area for DDPAK/TO-263 package
As shown in the figure, increasing the copper area beyond 1 square inch produces very little improvement. The
minimum value for θJA for the DDPAK/TO-263 package mounted to a two-layer PCB is 32°C/W.
Figure 26 shows the maximum allowable power dissipation for DDPAK/TO-263 packages for different ambient
temperatures, assuming θJA is 35°C/W and the maximum junction temperature is 125°C.
Figure 26. Maximum Power Dissipation vs Ambient Temperature for DDPAK/TO-263 Package
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