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About VBST of TPS53219.

Satoshi
Guru 19495 points
Other Parts Discussed in Thread: TPS53219

Although 0-Ω resistance is attached between VBST～SW about the 11-page of the datasheet of TPS53219, what kind of meaning is it?

Although 5.11-Ω resistance is attached to TPS53219EVM, what kind of meaning is there?

Thank you for your consideration.

  • 0
    TI__Guru**** 191445 points

    A series resistor with the BOOST capacitor can be used to slow the rising edge of the SW waveform and reduce overshoot and ringing (similar to the effect of an RC snubber).  Usually it is not used, but may be included to reduce the overshoot and ripple.