TPS7A49: PSRR vs Vin-Vout data

Hi Kobay-san, 

I checked our data repository and all the available PSRR data has already included in the datasheet. 

Regards, 

Jason Song

Hi Jason,

I want a graph like Fig.15-21 of TPS717. https://www.tij.co.jp/product/jp/TPS717
I would like to know how much (Vin-Vout) should be set to obtain sufficient PSRR performance.

Best Regards,

I would suggest giving the same amount or higher headroom if the plots shown in the datasheet are satisfactory. 

Fig.2 of TPS7A39 is attached.
With such data, it is possible to set the input / output difference and PSRR.

This time we use the input / output difference below 1V.

Therefore, it is necessary to know how much the PSRR changes.

But if you need more than 1.2V headroom, we can't use the TPS7A49.

What's the headroom available for the customer to use with TPS7A49? Unfortunately for TPS7A49, we don't have parametric PSRR data similar to the plot you shared.