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TPS54233: Soft start time: 1 mS>

Masazumi Ishii
Genius 3945 points
Part Number: TPS54233

ello.

I have a question about TPS54233.

In the data sheet, the soft start time is specified in the range of 1 mS - 10 mS. Why is this?
I want to make soft start time 1 mS or less.
Is there a problem?

thank you.

  • 0
    TI__Expert 5745 points
    The ss time set between 1ms to 10ms to ensure good start-up behavior.
    The frequency of this part is very low(300KHz), If the ss time is very short , the output could not start up well because of the low switching frequency (300KHz). Even if it can start up ,the output ripple during the startup will be big.