Heart rate monitoring device design

HLK10M05 https://datasheet.lcsc.com/szlcsc/1909111105_HI-LINK-HLK-10M05_C403745.pdf Power Module AC-DC Through Hole RoHS 21.8 Hi-Link HLK-10M05

SOIC127P620X175-8N Single Port USB Power Switch Texas Instruments LM3525M-L 926-LM3525M-L https://www.mouser.co.uk/ProductDetail/Texas-Instruments/LM3525M-L?qs=QbsRYf82W3Hq6obAT8m0fg%3D%3D LM3525M-L https://www.arrow.com/en/products/lm3525m-l/texas-instruments

SOP65P760X160-24N https://datasheet.datasheetarchive.com/originals/distributors/SFDatasheet-6/sf-000138015.pdf Brush motor driver IC 1.6 Toshiba TB6612FNG N/A https://www.mouser.co.uk/ProductDetail/Toshiba/TB6612FNG?qs=By6Nw2ByBD2hYPrK9yTkWQ%3D%3D