L4979D 데이터 시트보기 (PDF) - STMicroelectronics

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L4979D

Low drop voltage regulator

STMicroelectronics 

Package and PCB thermal data

4

Package and PCB thermal data

4.1

SO-8 thermal data

Figure 5. SO-8 PC board

L4979D, L4979MD

*$3*&)7

1.

Layout condition of Rth and Zth measurements (PCB: FR4

Cu thickness = 35 mm, Copper areas: from minimum pad

area = 58

lay-out to

mm x 58

2cm2).

mm,

PCB

thickness

=

2

mm,

Figure 6. Rthj-amb vs PCB copper area in open box free air condition

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12/22

Doc ID 10262 Rev 9

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