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L78L18AC 数据表(PDF) 5 Page - STMicroelectronics

部件名 L78L18AC
功能描述  Positive voltage regulators
Download  29 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L78L18AC 数据表(HTML) 5 Page - STMicroelectronics

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L78LxxAB - L78LxxAC - L78LxxC
Maximum ratings
5/29
3
Maximum ratings
Table 2.
Absolute maximum ratings
Symbol
Parameter
Value
Unit
VI
DC Input voltage
VO= 3.3 to 9 V
30
V
VO= 12 to 15 V
35
VO= 18 to 24 V
40
IO
Output current
100
mA
PD
Power dissipation
Internally limited (1)
1.
Our SO-8 package used for voltage regulators is modified internally to have pins 2, 3, 6 and 7 electrically communed to the
die attach flag. This particular frame decreases the total thermal resistance of the package and increases its ability to
dissipate power when an appropriate area of copper on the printed circuit board is available for heat-sinking. The external
dimensions are the same as for the standard SO-8.
mW
TSTG
Storage temperature range
-65 to 150
°C
TOP
Operating junction temperature range
for L78L00AC
0 to 150
°C
for L78L00AB
-40 to 125
Table 3.
Thermal data
Symbol
Parameter
SO-8
TO-92
SOT-89
Unit
RthJC
Thermal resistance junction-case. (Max)
20
15
°C/W
RthJA
Thermal resistance junction-ambient. (Max)
55 (1)
200
°C/W
1.
Considering 6 cm2 of copper Board heat-sink.


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