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ST1S32 Datasheet(PDF) 21 Page - STMicroelectronics

Part # ST1S32
Description  4 A DC step-down switching regulator
PDF  29 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1S32 Datasheet(HTML) 21 Page - STMicroelectronics

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ST1S32
Application information
Doc ID 023246 Rev 1
21/29
Figure 9.
PCB layout example
AM11423v1
Input cap as
close as possible
to VINSW pin
Star center for common ground
Short FB trace
VINA derived from Cin
to avoid dynamic voltage drop
between VINA and VINSW
Short high
switching
current loop
Via to connect the thermal pad
to bottom or inner ground plane



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