OKI78SR515W36C https://www.murata.com/products/productdata/8807037992990/oki-78sr.pdf?1583754815000 Non-Isolated DC/DC Converters 7.5W 24Vin 5Vout1 1.5A SIP Non-Iso 16.5 580-OKI78SR5/1.5W36C https://www.mouser.co.uk/ProductDetail/Murata-Power-Solutions/OKI-78SR-5-1.5-W36-C?qs=uJpRT2lXVNXJP%252Bo08dQqJQ%3D%3D Murata Electronics OKI-78SR-5/1.5-W36-C