TPS74801: Noise spectral density of TPS74801DRCR

Shlomi Yehezkia

Part Number: TPS74801
Other Parts Discussed in Thread: TPS7A88

Hi Team,

According to the datasheet there is graph of spectral noise density vs frequency (Figure 12).

Could you please provide me graph for the higher frequency 1MHz and 10MHz? and it will be nice to get graph for Vout=3.3v instead 1.2v.

Thanks,

Shlomi

over 4 years ago

0 Jason Song over 4 years ago

TI__Mastermind 23361 points

Hi Shlomi,

Please see the attached file for noise density up to 10MHz. The noise data attached is for 1.8V output and if your output is 1.2V, you generally get lower noise than the plots shownTPS748 noise.pptx.

Regards,
Jason Song

0 Shlomi Yehezkia over 4 years ago in reply to Jason Song

Mastermind 6150 points

Hi Jason Song,

Thank you for this info.

I must need the same graph but for Vout=3.3 and Iout=100mA/500mA.

Could you please supply me the same graph (up to 10MHz) (Vout=3.3v, Iout=100mA/1A) for TPS7A8801RTJR?

Thanks,

Shlomi

0 Jason Song over 4 years ago in reply to Shlomi Yehezkia

TI__Mastermind 23361 points

Hi Shlomi,

The datasheet of TPS7A88 has quite a few noise plots. Figure 8 has a Vout =3.3V with 1A load noise plot. I was able to find one more plot that shows the noise at 500mA and hope they are helpful.

Regards,
Jason Song

Power management

Power management forum

TPS74801: Noise spectral density of TPS74801DRCR