• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 63 subscribers
  • Views 397 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TPS63020 stability for transient loads.

rameshkumar reddy
Prodigy 40 points
Other Parts Discussed in Thread: TPS63020, TPS61280

Hi,

 I am planning to use TPS63020 IC for one my application.

Vin min - 2.5 V, Vin max - 3.8V

Load - 3.8V, 0A(0.5mSec), 2A(0,5mSec), transient load. (Load Di/dt 40mA/uSec)

Maximum expected ripple at the o/p is < 100mV.

What is value of the capacitor I can use at the output to support load transients.

I am using 1uH inductor for the applicaation.

Is there feed forward capacitor is provided internal IC? If so what is the value of it?

Thanks in advance.

  • 0
    TI__Expert 7110 points
    Typically, the device can support 2A Iout at a VIN of 2.5V up to 3.3V max. So the capacitor will have to buffer a lot at the output. Due to the duty-cycle of 50%, the recharge portion is quite short.
    Is the load profile above always present?
    If you are open in terms of package, TPS61280 Bosst+Bypass Converter could be an option. It is available in BGA-package.