TPS552872: schematic check

Hi Ryan,

Thank you for reaching out. May I know what is the application here? I have several questions to check:

1.What is input voltage range and output current range?

2.Can you help provide part number of output caps to evaluate loop parameters?

Regards,

Mulin

Hi Mulin,

The input voltage range is 10-24VDC, output current of TPS552872 is 12V 2A (MAX).

The output caps as shown below:

TDK C3216X7R1H106K160AC CAP CER 10UF 50V X7R 1206

Murata GRM31CC71E226ME15L CAP CER 22UF 25V X7S 1206

Murata GRM188D71H105ME01J CAP CER 1UF 50V X7T 0603

Murata GRM155R71H104KE14D CAP CER 0.1UF 50V X7R 0402

Würth Elektronik 860020473008 CAP ALUM 100UF 20% 25V RADIAL TH

Thanks,

Steven

Hi Steven,

I will look into this and give you feedback later.

Hi Steven,

The schematic looks ok to me. The only concern is the E-cap C535. There is no ESR data and I am afraid that ESR will be too large and will change with temp. Recommend to use a hybrid capacitor like EVM.

Regards,

Mulin

Hi Mulin,

Thanks for the review and comments.

The capacitor we can use Panasonic EEH-ZC1E101XP ESR 30mOhm, datasheet as attached plesae check if it is fine to use.

ABA0000C1234.pdf

Thanks,

Steven

Hi Steven,

This capacitor looks good. Please follow layout guideline and send us to review layout if needed.5342.TPS55289 Layout Guideline.pdf

Regards,

Mulin

Hi Mulin,

Noted, thanks for your review.

Besides, does the BQ24610 circuit diagram has any issues or needs modification? Please advise.

5140.ups_r0v1_Schematic.pdf

Thanks,

Steven