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LSF0108: EN pin capacitor

Kuramochi Tadahiko
Guru 28715 points

Part Number: LSF0108

Hi,

A capacitor is connected with EN pin on Figure 6 of the datasheet.

Do we have to locate this capacitor?

If yes, do you have any recommended capacitance?

Best Regards,

Kuramochi

  • 0
    Guru 326880 points

    Section 9.2.1.2.1 says:

    A filter capacitor on Vref_B is recommended for a stable supply at the device.

    It forms an RC low-pass filter together with the 200 kΩ resistor. If you know what frequencies your noise has, you can size it appropriately, but in practice, just use the same value that you use for other small decoupling capacitors on the board (e.g., 100 nF or 10 nF).