LDO на 210С есть у TI: www.digikey.com/product-search/en/integrated-circuits-ics/pmic-voltage-regulators-linear/2556290?k=&pv252=124&pv252=299&pv252=173&FV=fff40027%2Cfff80182&mnonly=0&newproducts=0&ColumnSort=0&page=1&quantity=0&ptm=0&fid=0&pageSize=250