TPSM843620: Need Help to get the reference design

Pavan Kalyan

Part Number: TPSM843620

Hi,
We are using TPSM843620 in our design. when we try to make the circuit with the help of webench we are getting the following error

I am not able to Simulate the design to get the required output capacitance to make the circuit in in acceptable ripple range.

Our Design parameters are as follows

Vin 12V((10.8V(min) and 13.2V(max))

Output current 3.1A

Output voltage 1.2V

Ambient temperature 55C

Kindly Help us here to make the Proper Design

Regards
Pavan

2 months ago

0 David_Daniels 2 months ago

TI__Mastermind 19040 points

I will report the issue to the webench team. You can use the calc tool to generate a design the link is here

https://www.ti.com/tool/download/CALC-TOOL-TPSM843X20

0 Umayal Ramanathan 2 months ago in reply to David_Daniels

TI__Expert 5020 points

Hi Pavan ,

We are able to replicate the issue. Currently analyzing to verify if its a valid fail. We shall keep you updated on the same.

Thanks and Regards,

Umayal

0 Pavan Kalyan 2 months ago in reply to Umayal Ramanathan

Prodigy 225 points

Hi Umayal,
Thanks for the information.
Please keep us posted if there is further update since we are looking forward to Use the part.

~Regards
Pavan

0 Umayal Ramanathan 25 days ago in reply to Pavan Kalyan

TI__Expert 5020 points

Hi Pavan ,

We apologize for the delay in response. Device for the reported condition is unable to find suitable ramp setting, hence we are observing the issue reported.
We are working to identify the root cause for this with high priority. We would be able to get back with more details by next week.

Thanks and Regards,
Umayal

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TPSM843620: Need Help to get the reference design