Yes. Only the ‘RE=‘ is the part number. The rest is the manufacturer’s date code of the chip production.

RE=

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You`ve already asked in another thread [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3245312-need-help-name-ic-lenovo-legion-pro-5-nm-f091-rev-1-0#post3271798[/url] .Also i sent you a private message 2 days ago :

Thread merged with existing topic - [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3245312-need-help-name-ic-lenovo-legion-pro-5-nm-f091-rev-1-0"]https://www.badcaps.net/forum/troubl...m-f091-rev-1-0[/URL]...

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https://www.richtek.com/assets/product_file