L4995 STMICROELECTRONICS [STMicroelectronics], L4995 Datasheet - Page 19

• Manufacturer Part Number: L4995
• Description: 5V, 500mA low drop voltage regulator
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

L4995
4
4.1
Note:
Package and PCB thermal data
PowerSSO-12™ thermal data
Figure 30. PowerSSO-12™ PC board
Layout condition of R
area= 77mm x 86mm,PCB thickness=1.6mm, Cu thickness=70µm (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 31. R
RTHj_amb(°C/W)
70
65
60
55
50
45
40
0
thj-amb
th
Vs. PCB copper area in open box free air condition
and Z
2
th
measurements (PCB: Double layer, Thermal Vias, FR4
PCB Cu heatsink area (cm^2)
4
.
6
Package and PCB thermal data
8
10
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