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L4976 数据表(PDF) 5 Page - STMicroelectronics

部件名 L4976
功能描述  1A step down switching regulator
PDF  17 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L4976 数据表(HTML) 5 Page - STMicroelectronics

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L4976
Electrical data
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3
Electrical data
3.1
Maximum ratings
3.2
Thermal data
3.3
Operating temperature rating
Table 2. Absolute maximum ratings
Symbol
Parameter
Value
Unit
DIP8
S016W
V5
V11
Input voltage
58
V
V4
V5, V6
Output DC voltage
-1
V
Output peak voltage at t = 0.1
µs, f = 200kHz
-5
V
I4
I5, I6
Maximum output current
internal limit
V6-V5
V12-V11
14
V
V6
V12
Bootstrap voltage
70
V
V7
V13
Analogs input voltage (VCC = 24V)
12
V
V8
V14
(VCC = 20V)
6
V
-0.3
V
PTOT
Power dissipation a TA ≤ 60°C
DIP8
1
W
SO16
0.8
W
TJ,TSTG
Junction and storage temperature
-40 to 150
°C
Table 3. Thermal data
Symbol
Parameter
DIP8
S016W
Unit
RthJA
Maximum thermal resistance junction-ambient
90 (1)
1.
Package mounted on board
110 (1)
°C/W
Table 4. Operating temperature rating
Symbol
Parameter
Value
Unit
TJ
Junction temperature range
-40 to 150
°C



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