TPS2420: Timing specification of overcurrent response by TPS2420 and TPS2590

Please let me know about two points below for overcurrent response by TPS2420 and TPS2590;

①Detect overcurrent threshold

②Circuit-Breaker response time after detect overcurrent

One customer need ①is less than 2μs and ② is less than 20μs, I want to clear TPS2420 and TPS2590 are match or not.

I found the other IC that matched timing specification, but these are not have TI.com inventory.

(TPS2420 and TPS2590 are available)

Best regards,

Satoshi