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LM2770 Datasheet(PDF) 13 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor. Click here to check the latest version.
Part # LM2770
Description  High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
PDF  14 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM2770 Datasheet(HTML) 13 Page - National Semiconductor (TI)

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Layout Guidelines
Proper board layout will help to ensure optimal performance
of the LM2770 circuit. The following guidelines are recom-
mended:
•
Place capacitors as close to the LM2770 as possible, and
preferably on the same side of the board as the IC.
•
Use short, wide traces to connect the external capacitors
to the LM2770 to minimize trace resistance and induc-
tance.
•
Use a low resistance connection between ground and the
GND pin of the LM2770. Using wide traces and/or mul-
tiple vias to connect GND to a ground plane on the board
is most advantageous.
20126015
FIGURE 1. Recommended Board Layout of a LM2770 Circuit
Unlabelled vias connect to an internal ground plane.
www.national.com
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