LM2940IMP-8.0 National Semiconductor, LM2940IMP-8.0 Datasheet - Page 12

• Manufacturer Part Number: LM2940IMP-8.0
• Description: 1A Low Dropout Regulator
• Manufacturer: National Semiconductor

Application Hints
(Continued)
DS008822-40
FIGURE 5.
vs Copper (2 ounce) Area for the
(J−A)
DS008822-39
SOT-223 Package
FIGURE 4. Maximum Power Dissipation vs T
for
AMB
the TO-263 Package
Figure 5 and Figure 6 show the information for the SOT-223
package. Figure 6 assumes a
of 74˚C/W for 1 ounce
(J−A)
copper and 51˚C/W for 2 ounce copper and a maximum
junction temperature of 125˚C.
DS008822-41
FIGURE 6. Maximum Power Dissipation vs T
for
AMB
the SOT-223 Package
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