Difference between TPS5633PWP and TPS5633PWPR

I have an old design and TPS5633PWPR appears to be obsolete and I’m told that TPS5633PWP is a direct substitute. Both products point to the same generic product spec, so I can’t tell what the actual differences are between both chips, surely it’s not just a name change.

Any guidance would be appreciated.

Thanks,

Gary A Lantz

hello, It is the packaging is the change TPS5633PWP tube package
TPS5633PWPR tape and reel packaging part is same.