LTC2641IS8-16#PBF LTC2641IS8-16#TRPBF LTC2641IS8-16PBF LTC2641IS8-16TRPBF LTC2642ACDD-16 LTC2642ACDD-16#PBF LTC2642ACDD-16#TRPBF LTC2642ACDD-16/I LTC2642ACDD-16PBF LTC2642ACDDPBF