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L4993DTR 数据表(PDF) 18 Page - STMicroelectronics

部件名 L4993DTR
功能描述  Low drop voltage regulator
PDF  30 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4993DTR 数据表(HTML) 18 Page - STMicroelectronics

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Package and PCB thermal data
L4993
18/30
4
Package and PCB thermal data
4.1
SO-8 thermal data
Figure 28.
SO-8 PC board
Note:
Layout condition of Rth and Zth measurements (PCB FR4 area= 58mm x 58mm, PCB
thickness = 2mm, Cu thickness = 35µm , Copper areas: from minimum pad lay-out to 2cm2).
Figure 29.
Rthj-amb Vs. PCB copper area in open box free air condition
110
120
130
140
150
160
170
0
0,5
1
1,5
2
2,5
PCB Cu heatsink area (cm^2)



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