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LM317S/NOPB 数据表(PDF) 15 Page - Texas Instruments

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部件名 LM317S/NOPB
功能描述  LM117/LM317A/LM317-N Three-Terminal Adjustable Regulator
PDF  40 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

LM317S/NOPB 数据表(HTML) 15 Page - Texas Instruments

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LM117, LM317A, LM317-N
www.ti.com
SNVS774O – MAY 2004 – REVISED JANUARY 2014
Table 1.
θJA Different Heatsink Area
Layout
Copper Area
Thermal Resistance
Top Side (in2)(1)
Bottom Side (in2)
(
θJA°C/W) TO-252
1
0.0123
0
103
2
0.066
0
87
3
0.3
0
60
4
0.53
0
54
5
0.76
0
52
6
1.0
0
47
7
0.066
0.2
84
8
0.066
0.4
70
9
0.066
0.6
63
10
0.066
0.8
57
11
0.066
1.0
57
12
0.066
0.066
89
13
0.175
0.175
72
14
0.284
0.284
61
15
0.392
0.392
55
16
0.5
0.5
53
(1)
Tab of device attached to topside of copper.
Figure 30.
θJA vs 2oz Copper Area for TO-252
Figure 31. Maximum Allowable Power Dissipation vs. Ambient Temperature for TO-252
Copyright © 2004–2014, Texas Instruments Incorporated
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15
Product Folder Links: LM117 LM317A LM317-N



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