TPS54540DDA IC-54540 REG BUCK SPLIT RAIL SOPWRPAD8 TPS54540DDA is a versatile and high-performance DC-DC voltage regulator that featuring a nan function with nan output type. Input voltage range: nan, output voltage: nan and current: nan. Operates within switching frequencies of N/A at temperatures of ROHS.Manufactured by SMT with SO8 EP mounting type. Compliant with TUBE standards and packaged as N/A.