TPS62xxx - operating above recommended maximum ambient temperature

Q:

Can I operate my IC above the recommended maximum ambient temperature (which is usually 85 C) if I keep the junction temperature below the recommended maximum (which is usually 125 C)?  

Are the electrical characteristics specified in this case?

A:

Yes and Yes.

For the TPS62xxx devices, the electrical characteristics are tested, characterized, and specified over the recommended junction temperature range.  The recommended ambient temperature is a legacy parameter but still has some use.  Generally, operating below the maximum recommended ambient temperature with a good thermal layout will keep the maximum junction temperature below the recommended maximum.