TPSM82810: Supply issues and possible alternative part

Hi Dan,

I will check if there is any supply available or an alternative and give you some feedback as soon as possible.

Regards,
Alex

Hi Dan,

Unfortunately, we can not support the request currently due to shortage and please check on distributor like arrow or digikey.

If they do not have any supply you could check these 2 devices which could fit:

TPSM82810 data sheet, product information and support | TI.com
TPSM82813 data sheet, product information and support | TI.com

Regards,
Alex

Thanks Alex,

We appreciate the help.

For months we've done our best to find them at various distributers, including DigiKey, Mouser, Arrow, Avnet and many more.

Those two datasheets you posted are for the exact same parts I listed. Do you have any other recommendations?

Kind regards,

Dan

Hi Dan,

Unfortunately there is no pin to pin compatible device available right now.

If you could consider alternatives that are not pin to pin then I could try to find you some which would be available if that is an option for you.

If that is the case what other specifications besides size and voltage are also important to your system?

Regards,
Alex

Thanks Alex,

We can consider alternatives that aren't pin for pin compatible. Footprint compatibility is the preference, but it's mainly the overall size of the footprint and supporting components that matters.

There are 14 of these point of load supplies on the same board, converting 5V to a range of voltages between 0.85V and 3.3V.

Other specs:

1. Enable or Shutdown pin. Anything that allows us to enable/disable the supply with GPIO or the PG pin of another supply.
2. PG pin
3. 4A current output preferred, but may accept 3A.

Wish list

1. Spread spectrum, preferred but not essential.

I did see TPSM82822 and TPSM82821 on your website which are 2A and 1A respectively, but since they are also unavailable at suppliers, I didn't bother going into further detail with them.

Kind regards,

Dan

Hi Dan,

I will see if I can find an alternative which would fit your requirements and come back to you as soon as possible.

Regards,
Alex

Thanks Alex,

I just had a though. We were regulating 5V only because nothing existed that could drop a 3S voltage (10V-14V) down to 0.85V efficiently.

If an SMPS like that exists now, it would be a massive bonus. Otherwise, we'll keep regulating from 5V.

Kind regards,

Dan

Hi Dan,

That could be an option but we do not have any alternative which would have an similar footprint (uSiP (SIL)14) compared to the TPSM82810 .

Right now we could only provide you an alternative which has a different footprint. 
I could search for a few devices which would have similar dimensions but the pins will be different.

Regards,
Alex

Thanks Alex,

Have you made any progress?

Kind regards,

Dan

Hi Dan,

Unfortunately there is no alternative available which would have a similar footprint.

The only available device that would meet your requirements would be the LMZ31503 data sheet, product information and support | TI.com but this device is quite bigger.

Regards,
Alex