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LM340 数据表(PDF) 9 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
部件名 LM340
功能描述  Series 3-Terminal Positive Regulators
Download  15 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

LM340 数据表(HTML) 9 Page - National Semiconductor (TI)

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Application Hints (Continued)
Figures 6, 7 show the information for the SOT-223 package.
Figure 6 assumes a
θ
(J–A) of 74˚C/W for 1 ounce copper and
51˚C/W for 2 ounce copper and a maximum junction tem-
perature of 125˚C.
Please see AN-1028 for power enhancement techniques to
be used with the SOT-223 package.
Typical Applications
DS007781-41
FIGURE 6.
θ
(J–A) vs Copper (2 ounce) Area
for the SOT-223 Package
DS007781-42
FIGURE 7. Maximum Power Dissipation vs
T
AMB for the SOT-223 Package
Fixed Output Regulator
DS007781-13
Note: Bypass capacitors are recommended for optimum stability and
transient response, and should be located as close as possible to the
regulator.
High Input Voltage Circuits
DS007781-14
DS007781-15
www.national.com
9


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