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TPS54531:Absolute Maximum Ratings and Recommended Operating Conditions of VIN

Part Number: TPS54531
Other Parts Discussed in Thread: TPS54332

Hello, TI E2E

About TPS54531 and TPS54332.
What is the difference between the recommended operating conditions and the absolute maximum rating?
About VIN, the absolute maximum rating is max30V and the recommended operating condition is max28V.

For example, if the voltage input to the VIN is 27V ± 5%,
max28.35V is applied to VIN.

Is this NG for TPS54531? ( recommended opereating conditions 28V < 28.35V < Absolute maximum ratings 30V )
Is there any problem because the absolute maximum rating is not exceeded?
I would like to know a clear definition and concept of recommended operating conditions.

Best regards, Taku