TPS54428DDAR IC-54428 REG BUCK SYNC ADJ 4A SOP8 TPS54428DDAR is a versatile and high-performance DC-DC voltage regulator that featuring a Adjustable function with 4.5V to 18V output type. Input voltage range: 0.76V to 7V, output voltage: 4A and current: 650kHz. Operates within switching frequencies of N/A at temperatures of ROHS.Manufactured by SMT with SO8 Power Pad mounting type. Compliant with TAPE&REEL standards and packaged as N/A.