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L4938ED Scheda tecnica(PDF) 6 Page - STMicroelectronics

Il numero della parte L4938ED
Spiegazioni elettronici  Advanced voltage regulator
PDF  20 Pages
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Produttore elettronici  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4938ED Scheda tecnica(HTML) 6 Page - STMicroelectronics

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Block diagram and pin description
L4938ED, L4938EPD
6/20
Doc ID 17243 Rev 2
Table 2.
Pin definitions and functions
PIn number
Name
Function
SO-20
PowerSO-20
18
3
VS2
Supply voltage (400 mA regulator)
19
4
VS1
Supply voltage (100 mA regulator, reset, sense)
20
5
SI
Sense input
1
6
PR
Reset threshold programming
2
7
CT
Reset delay capacitor
3
8
EN
Enable (low activates the 400 mA regulator)
4, 5, 6, 7, 14, 15,
16, 17
1, 10, 11, 20
GND
Ground
8
14
RES
Reset output
9
15
SO
Sense output
10
16
OUT1
100 mA regulator output
11
17
ADJ
Feedback of 400 mA regulator
12
18
OUT2
400 mA regulator output
13
2, 9, 19
NC
Not connected



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