TPS62A03: Request for TPS62A03 schematic review

Grady Lee

Genius 4155 points

Part Number: TPS62A03

Tool/software:

Hi, TI expert

The customer requested a schematic review using TPS62A03.

[spec]

- Input : 3.2Vdc ~ 4.15Vdc

- Output : 3Vdc , 3A

Are there any problems with the circuit? Are there any areas that need to be modified? Please review.

Thank you.

6 months ago

0 Varun John 6 months ago

TI__Mastermind 21160 points

Hi Grady,

The schematic looks fine.

Best regards,

Varun

0 Grady Lee 6 months ago in reply to Varun John

Genius 4155 points

Hi, Varun

Thank you for quick response.

I just checked it on WEBENCH with the spec (Input: 3.2Vdc ~ 4.15Vdc / Output: 3Vdc, 3A) mentioned in the review request, but the circuit configuration is not done.

Are you sure the schematic looks fine?

I asked the customer for the spec again, and they reconfirmed that it is the spec (Input: 3.2Vdc ~ 4.15Vdc / Output: 3Vdc, 1A or more).

So, I tried WEBENCE again with the condition of Input: 3.2Vdc ~ 4.15Vdc / Output: 3Vdc, 1.5A, but the circuit configuration was not done, so I changed it to Input: 3.5Vdc ~ 4.15Vdc / Output: 3Vdc, 1.5A, and the circuit configuration was done.

Why doesn't it work with WEBENCH?

Input: 3.2Vdc ~ 4.15Vdc / Output: 3Vdc, 1.5A. Please check the circuit review again.

Thank you.

+1 Varun John 6 months ago in reply to Grady Lee

TI__Mastermind 21160 points

Hi Grady,

The TPS62A03 supports 100% mode. So it should be possible for VIN to be close to the output level. The minimum input voltage is given by the below equation