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L4938EPD Datasheet(PDF) 6 Page - STMicroelectronics

No. de pieza L4938EPD
Descripción Electrónicos  Advanced voltage regulator
PDF  20 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L4938EPD Datasheet(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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