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Maybe a factory production device? For example Ricoh has this dc/dc (SMD code ending at 3q)3Q R1210N231A Ric SOT-23-5 PWM step-up, 2.3V, 35..100kHzFound via this SMD markings code site: http://www.smdmarkingcodes.com/Index/search?p=2&xuanze=1&markingcode=3q&baohan=2&fenzuan=0
Hello,I read from the original tweet that the ic could be identified. But, for my curiosity, what is the part number?