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LMG3425R050: VNEG cap connection is contradicted in the datasheet

Part Number: LMG3425R050

Table 6-1 describes VNEG as "Negative supply output, bypass to ground with 2.2-µF capacitor". Figure 10-1 shows the VNEG capacitor connected to source not ground. Which is correct?

  • Also Figure 12-2 shows the VNEG cap connected to source. I'm leaning towards this being correct, but I would like clarification.

  • Hi Bryan, thanks for your question. We apologize for the confusion - the GND pins on the LMG3425 are internally connected to the the source. This is why the VNEG bypass capacitor on the high-side device is referenced to the SW node. We are looking at updating our data sheet to reflect these changes that were made in the second generation devices.

    Best regards,