TPS61288: Schematic check

Sanjay

Expert 6430 points

Part Number: TPS61288

Hi Team,

I am using TPS61288 in one of my design.

1. VIN Range = 2.7 to 5.5V
2. VOUT = 15.7V
3. IOUT = 0A to 0.25A

Please check the design below and let me if there is concern.

Thanks,
Sanjay

2 months ago

0 Nathan Ding 2 months ago

TI__Genius 13945 points

Hi Sanjay,

Can you please let me know the p/n or datasheet for inductor and output capacitors? Thanks.

Regards,

Nathan

0 Sanjay 2 months ago in reply to Nathan Ding

TI__Expert 6430 points

Hi Nathan,

Please check the details below -
1. L3 - MSS1278-472MLB
2. C69/C70/C71 - GRM21BR6YA106KE43L

Thanks,
Sanjay

0 Nathan Ding 2 months ago in reply to Sanjay

TI__Genius 13945 points

Hi Sanjay,

Suggest to change COMP parameters based on datasheet typical application, and also add a C6=27pF as show below.

You can also refer to 9.2.2 Detailed Design Procedure on d/s for more details.

The other things looks ok.

Thanks.

Regards,

Nathan

0 Sanjay 2 months ago in reply to Nathan Ding

TI__Expert 6430 points

Hi Nathan,

I got those values from https://webench.ti.com/power-designer/switching-regulator.
Can you please confirm which one I need to consider ?

Thanks,
Sanjay

0 Nathan Ding 2 months ago in reply to Sanjay

TI__Genius 13945 points

Hi Sanjay,

We suggest to follow on the datasheet guide if there is a mistake usually, and it looks not common for the compensation value on previous schematic I think, so we suggest to refer to datasheet.

Please let me know if more questions.

Regards,

Nathan

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TPS61288: Schematic check