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L99VR02XP Datasheet(PDF) 41 Page - STMicroelectronics

Part # L99VR02XP
Description  Dual automotive linear voltage regulator with configurable output voltage (2x250 mA current capability)
PDF  50 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L99VR02XP Datasheet(HTML) 41 Page - STMicroelectronics

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Pulse calculation formula:
ZTHδ=RTH.δ+ZTHtp1−δ
(5)
Where:
δ = tp/T
Figure 62. Thermal fitting model of a Vreg in PowerSSO-36
Table 21. PowerSSO-36 thermal parameter
Area/island (cm2)
FP
2
8
4L
R1 (°C/W)
2.5
-
-
-
R2 (°C/W)
3
-
-
-
R3 (°C/W)
4
4
4
4
R4 (°C/W)
6
6
6
5
R5 (°C/W)
18
14
10
2
R6 (°C/W)
30
26
15
7
R7 (°C/W)
2.5
-
-
-
R8 (°C/W)
3
-
-
-
C1 (W·s/°C)
0.001
-
-
-
C2 (W·s/°C)
0.005
-
-
-
C3 (W·s/°C)
0.15
0.2
0.2
0.2
C4 (W·s/°C)
0.9
0.9
0.9
3
C5 (W·s/°C)
1
2
3
10
C6 (W·s/°C)
3
5
9
18
C7 (W·s/°C)
0.001
-
-
-
C8 (W·s/°C)
0.005
-
-
-
L99VR02XP
PowerSSO-36 PCB thermal data
DS14686 - Rev 1
page 41/50



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