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L4995 数据表(PDF) 21 Page - STMicroelectronics

部件名 L4995
功能描述  5V, 500mA low drop voltage regulator
PDF  35 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4995 数据表(HTML) 21 Page - STMicroelectronics

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L4995
Package and PCB thermal data
Doc ID 13103 Rev 14
21/35
Figure 33.
PowerSSO-12 thermal impedance junction ambient single pulse
Equation 4: pulse calculation formula
where
δ = tP/T
Figure 34.
Thermal fitting model of Vreg in PowerSSO-12
0,1
1
10
100
0,0001
0,001
0,01
0,1
1
10
100
1000
Time ( s)
ZTH ( ° C/ W)
Footprint
8 cm2
2 cm2
Z
TH
δ
R
TH δ
Z
THtp
1
δ
–
()
+
⋅
=



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