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ST1S31 Datasheet(PDF) 22 Page - STMicroelectronics

No. de pieza ST1S31
Descripción Electrónicos  3 A DC step-down switching regulator
PDF  35 Pages
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S31 Datasheet(HTML) 22 Page - STMicroelectronics

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Demonstration board
ST1S31
22/35
DocID022998 Rev 4
6
Demonstration board
Figure 11. Demonstration board schematic
Table 9. Component list
Reference
Part number
Description
Manufacturer
U1
ST1S31
ST
L1
DR73 2R2
2.2 µH, Isat = 5.5 A
Coiltronics
C1
C3225X7RE106K
10 µF 25 V X7R
TDK
C2
C3225X7R1C226M
22 µF 16 V X7R
TDK
C3
1 µF 25 V X7R
C4
NC
R1
62.5 k
R2
20 k
R3
10 k
AM11424v1
3.3V
5V
VIN
Vout
0
0
L1
2.2uH
L1
2.2uH
R2
20k
R2
20k
R3
10k
R3
10k
C2
22u
C2
22u
C1
10u
C1
10u
C3
1u
C3
1u
U1
ST1S31
U1
ST1S31
VIN_A
1
EN
2
FB
3
AGND
4
PGND
8
SW
7
VIN_SW
6
PGOOD
5
ePAD
C4
NC
C4
NC
R1
62.5k
R1
62.5k



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