TPS754: Please verify my below schematics

Abhishek Manoj

Part Number: TPS754

Tool/software:

In my regulator, the input voltage is 3.3V and required output voltage is 1.8V. Please go through my schematics and provide feedbacks for it

Thanks and regards

Abhishek

11 months ago

0 Bobby 11 months ago

TI__Expert 4800 points

Hi,

Thanks for the question. Allow me 1-2 business days to get back to you.

Regards,

Bobby

0 Abhishek Manoj 11 months ago in reply to Bobby

Intellectual 475 points

Hi Bobby,

Can you please verify my schematics for TPS75433QPWP.

Regards,

Abhishek

0 Bobby 11 months ago in reply to Abhishek Manoj

TI__Expert 4800 points

Hi Abhishek,

I have reviewed the schematic for U36 and following are my comments:

All the components have been marked as DNP, but I am assuming you are placing all of them as per the schematic.

1. Cout: Your cout is significantly higher than Cin. So, when the device starts up, due to the higher inrush current, the part might go into current limit. Please be aware of this.

2. Cout ESR: Please follow the recommendations in Page 15 of the datasheet regarding ESR of the output cap.

3. Sense (Pin 7): Since this is a fixed device, Pin 7 is a sense pin. Please see the following recommendation from datasheet

Regards,

Bobby

0 Abhishek Manoj 11 months ago in reply to Bobby

Intellectual 475 points

Hi Bobby,

Thanks for your feedback.

Regards,

Abhishek

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TPS754: Please verify my below schematics