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L4995 데이터시트(PDF) 21 Page - STMicroelectronics

부품명 L4995
상세설명  Automotive 5V, 500mA low drop voltage regulator
PDF  36 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4995 데이터시트(HTML) 21 Page - STMicroelectronics

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Package and PCB thermal data
L4995
22/37
DS5053 Rev 15
4
Package and PCB thermal data
4.1
PowerSSO-12 thermal data
Figure 31. PowerSSO-12 PC board
Note:
Layout condition of Rth and Zth measurements (PCB: Double layer, Thermal Vias, FR4
area= 77mm x 86mm,PCB thickness=1.6mm, Cu thickness=70
m (front and back side)
Thermal vias separation 1.2 mm, Thermal via diameter 0.3 mm +/- 0.08 mm, Cu thickness
on vias 0.025 mm, Footprint dimension 4.1 mm x 6.5 mm).
Figure 32. Rthj-amb vs PCB copper area in open box free air condition
40
45
50
55
60
65
70
0
2
4
6
8
10
RTHj_a
_amb(°C/ W)
PCB Cu hea
eatsink area
ea (cm^ 2)
GAPGMS00082



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