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Is there any device output ramp time is 50us?

Toshihiro Watanabe
Genius 10235 points
Other Parts Discussed in Thread: TPS62097

Hello,

I look for DCDC converter which 5Vin 1.1V 2A output, ramp time 50us+/-20% in some reasons. I think this ramp time is too fast but would you let me know if there is a DCDC converter to satisfy this ramp time?

Best regards,

Toshihiro Watanabe

  • 0
    TI__Expert 3645 points

    Hello,

    what do you mean with ramp time? Do you refer to the effective tss (without eventual delay of the control logic)? Can you give more info about your application and if you already had a look in some devices?

  • 0 in reply to Alfonso Furio
    TI__Genius 10235 points

    Hello Alfonso-san,

    I am sorry my unclear question. Logic delay is not considered. When disable to enable, Vout voltage goes increasing. Ramp time is 0V(0%)  to 1.1V(100%) time.

    TPS62097 at SS pin open, we saw 160us ramp time. 50us is faster than this value so I think it depends on output capacitor value. I think this ramp time is difficult to satisfy but if there is a device to satisfy this ramp time, please let me know it.

    Best regards,

    Toshihiro Watanabe

  • 0 in reply to Toshihiro Watanabe
    TI__Expert 3645 points

    Hello,

    at the moment we don't have any device that satisfy this requirement. Can you please contact me by private mail: a-furio@ti.com  ?

    I am going to close this post since we are continuing by email.