LM2770SD-1215 NSC [National Semiconductor], LM2770SD-1215 Datasheet - Page 13

• Manufacturer Part Number: LM2770SD-1215
• Description: High Efficiency Switched Capacitor Step-Down DC/DC Regulator with Sleep Mode
• Manufacturer: NSC [National Semiconductor]

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
• Use short, wide traces to connect the external capacitors
• Use a low resistance connection between ground and the
preferably on the same side of the board as the IC.
to the LM2770 to minimize trace resistance and induc-
tance.
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.
FIGURE 1. Recommended Board Layout of a LM2770 Circuit
Unlabelled vias connect to an internal ground plane.
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