LM5176-Q1: Are overcurrent protection and thermal shutdown 100% tested?

Hello Kaji,

How and what we are testing on every IC is TI proprietary information, so I can only tell you that we test according the below linked terms of sale.

Please have a look at this information here: 

Testing and other quality control techniques are used to the extent TI deems necessary. TI does not necessarily test all parameters of each Product. (This is from the North American page).

I expect that the meaning of this sentence from the Japanese page is the same:

テスト及びその他品質管理手法は、TIが必要とみなす範囲において使用される。TIは、個々の本製品に係わる全てのパラメーターについて必ずしもテストを実施するものではない。

In addition, please keep in mind that especially the overvoltage protection is dependent on a working external feedback divider.