TPS79733 automotive vs industrial

Peter Clerico

Other Parts Discussed in Thread: TPS7A4201, TPS7A4101, TPS7A4001, LM9076

The standard industrial version for this part is showing significant lead time. The TPS79733-Q1 has much better availability. Its output is limited to 10mA, where the standard version can drive 50mA.

Can you indicate why the -Q1 version is limited? Comparing the specs for both parts, over industrial temp, they are quite similar, but over extended temperature some parameters vary significantly more (e.g. dropout voltage) - does this contribute to the reduced output capability of the -Q1 version?

If the intent is to use this over only the industrial temp range, is the -Q1 version effectively a drop-in for the industrial version? Can it deliver >10mA load?

over 12 years ago

0 Bill Stokes over 12 years ago

TI__Expert 8890 points

Hello Peter,

You are likely correct on all accounts but I am not free to recommend using a part outside its specifications. Have you looked at the TPS7A4001? This is a very robust newer part. Its voltage rating is much higher than you likely need but TI will be releasing 50V and I think 24V versions by the end of the year (TPS7A4101 and TPS7A4201, respectively).

Regards

Bill

0 Peter Clerico over 12 years ago in reply to Bill Stokes

Intellectual 550 points

Thanks Bill,

That was my suspicion. I failed to mention that the SC70 pkg and Power Good (PG) output are important here as well. This really limits the field of available solutions.

Peter

0 Bill Stokes over 12 years ago in reply to Peter Clerico

TI__Expert 8890 points

Hi Peter,

I can't offer a part in the SC70 package. the only other part that I can think of is the LM9076.

Power management

Power management forum

TPS79733 automotive vs industrial