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LP8868Y-Q1: Can it be used for Vin= 19~30V, LED Vf(max)= 57.6V LED 0.65A application ?

Part Number: LP8868Y-Q1
Other Parts Discussed in Thread: LM3423BBLSCSEV

Hi 

May i check if LP8868Y-Q1 can  be used for Vin= 19~30V, LED Vf(max)= 57.6V LED 0.65A application ?  

datasheet mentioned CSP,CSN max rating is 63V. 

From datasheet reference schematics shown as below, look like the CSP and CSN pin will see Vin + LED Vf(max) = 57.6V+19V = 76.6V voltage. is my understanding correct?

If LP8868Y can not be used in this case, any other suggestion?