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TPS62812-Q1: COUT selection

Part Number: TPS62812-Q1

Hello Team,

The TPS62812-Q1 datasheet recommends 2x22uF+10uF as COUT.

Q. How did you decide the recommend COUT value?

Q. In case we decrease the COUT value, what is the concern of this?(etc. Decreasing phase margin, increase output ripple voltage, is there any other concern?)


Yuta Kurimoto

  • Hi Kurimoto-san,

    According to our compensation setting selection, the min output capacitance is define in the datasheet table 9-2.  Please select output capacitance according to recommendation.

    Decreasing output capacitor will risk the device performances like output voltage regulation, transient and so on. Min output capacitance suggest in datasheet is for device normal regulation in all operating conditions that includes different voltage, current setting and temp.

    Best regards,