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TPS63060 – About fPHPZ

Guru 21045 points
Other Parts Discussed in Thread: TPS63060

Hi Team,

 

Our customer would like to use TPS63060 at following condition.

 

<Condition>

Vin=4.0V(min)

Vout=6.0V

Iout=1.2A(max)

L = 1.0uH

 

However, according to the equation6, the fPHPZ is 353.6kHz.

So, the fPHPZ is out of the recommended range(>400kHz).

Must we not use this device in this case?

We guess that this device is unstable operation because the phase margin decreases.

Is my understanding correct?

And, could you please send it to me if you have the measured result of the phase margin at this case?

 

 

Regards,

Kanemaru