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Original question:

TPS61299: Calculation of Switching Frequency

TPS61299: TPS61299 + TPS7A5701

patrick nefos
Expert 1830 points
Part Number: TPS61299

I have similar question, is this correct (2024 datasheet at 7.3.4)

VIN = 0V85 VOUT 0V72 BIAS = 3.72V+ with 15mA Max so using 28K7 for 3V8.

Is this correct? Improvements? Thanks, Patrick

  • +1
    TI__Expert 6245 points

    Hi Patrick，

    The R317 is proper to set 3.8V Vout。 I'm a little curious what the VOUT 0V72 BIAS means?  Also the cout is better composed a small size ceramic capacitor, 2.2uF close to Vout pin and 47uF capacitor as well.