TPS62442-Q1: Request of review for the circuit

Mohsin Shehzad

Part Number: TPS62442-Q1
Other Parts Discussed in Thread: LM64460-Q1

Hi,

I am designing a DC-DC buck regulator with 3.3V input and 2.5V and 1.2V as outputs, I have used TPS62442-Q1 and followed the WEBENCH design for this. I also need this circuit to be synchronised by an external clock source. The circuit schematic is shown below

Any feedback will helpful.

Thank you

Best Regards

Mohsin

10 months ago

+1 Farheen 10 months ago

TI__Genius 16820 points

Hello Mohsin,

It seems fine. This app note explains synchronization in case you need some help.

https://www.ti.com/lit/an/slvaeg8/slvaeg8.pdf?ts=1716297949242&ref_url=https%253A%252F%252Fwww.ti.com%252Fproduct%252FTPS628502-Q1

Thanks,

Farheen

0 Mohsin Shehzad 9 months ago in reply to Farheen

Intellectual 350 points

Hi Farheen,

Thank you for your quick. this is helpful.

0 Mohsin Shehzad 9 months ago in reply to Mohsin Shehzad

Intellectual 350 points

Hi,

Can you please also review my layout for this device? I followed it from the Evaluation board. I am designing a six layer board in which 2nd and 5th layers are GND planes, the preview of the layout is as follow

Many Thanks

0 Farheen 9 months ago in reply to Mohsin Shehzad

TI__Genius 16820 points

Hello Mohsin,

Let me have a look and respond you by Monday.

Thanks,

Farheen

0 Farheen 9 months ago in reply to Farheen

TI__Genius 16820 points

Hello Mohsin,

Layout looks fine. How EN is connected to Vin? Is it connected through via?

Thanks,

Farheen

+1 Mohsin Shehzad 9 months ago in reply to Farheen

Intellectual 350 points

Hi Farheen,

Thank you for your review.

The EN was connected directly to Vin but I have changed this and connected to the power good of 3.3V converter (LM64460-Q1).

Best Regards

Mohsin

Power management

Power management forum

TPS62442-Q1: Request of review for the circuit