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SC190DEVB Arkusz danych(PDF) 10 Page - Semtech Corporation

Numer części SC190DEVB
Szczegółowy opis  Synchronous Buck Converter with Programmable Output
PDF  18 Pages
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Producent  SEMTECH [Semtech Corporation]
Strona internetowa  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC190DEVB Arkusz danych(HTML) 10 Page - Semtech Corporation

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 2005 Semtech Corp.
www.semtech.com
POWER MANAGEMENT
SC190
Applications Information (Cont.)
PCB Layout Considerations
Poor layout can degrade the performance of the DC-
DC converter and can be a contributory factor in EMI
problems, ground bounce and resistive voltage losses.
Poor regulation and instability can result.
A few simple design rules can be implemented to ensure
good layout:
1. Place the inductor and filter capacitors as close to the
device as possible and use short wide traces between the
power components.
2. Route the output voltage feedback path away from
inductor and LX node to minimize noise and magnetic
interference. Use a ground plane to further reduce noise
interference on sensitive circuit nodes.
Suggested Layout



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