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TPS769-Q1: Legacy chip and New Chip, how to identify from IC marking ?
The easiest way to identify legacy vs. new chip material is to look at the label on the box if CSO:(RFB) then this will be the new chip, anything else will refer to the legacy material, for additional information about where this can be found on the label please see: How to identify the material? They have the same top side markings so there will be no way to tell a difference there.
