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LP3891 データシート(PDF) 10 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部品番号 LP3891
部品情報  0.8A Fast-Response Ultra Low Dropout Linear
PDF  12 Pages
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LP3891 データシート(HTML) 10 Page - National Semiconductor (TI)

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Application Hints (Continued)
As shown in the graph below, increasing the copper area
beyond 1 square inch produces very little improvement. The
minimum value for
θ
JA for the TO-263 package mounted to a
PCB is 32˚C/W.
Figure 2 shows the maximum allowable power dissipation
for TO-263 packages for different ambient temperatures,
assuming
θ
JA is 35˚C/W and the maximum junction tempera-
ture is 125˚C.
20069526
FIGURE 2. Maximum power dissipation vs ambient
temperature for TO-263 package
www.national.com
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