TPS5450DDAR

TPS5450DDAR is the tape-and-reel HSOIC-8 (DDA, PowerPAD) ordering code for the Texas Instruments TPS5450 step-down converter. Lifecycle status must be stated plainly: TI lists this tape-and-reel code as NRND - Not Recommended for New Designs - in its current Package Option Addendum dated 24 March 2026, superseding the Active status shown in the November 2025 datasheet appendix; the tube-packed sibling code remains Active, and that status does not carry over to this reel code. Electrically, per datasheet SLVS757E, it accepts a 5.5 V to 36 V input, regulates against a 1.202 V to 1.239 V feedback reference (1.221 V typical at 25 °C), switches at 400 kHz to 600 kHz (500 kHz typical), limits switch current between 6.0 A and 9.0 A, and delivers up to 5 A continuous output. The selection point is sustaining existing designs: the TPS5450 is a long-running industrial buck, and this reel code is the production packing form for boards already qualified on it. Selection advice: for new designs, start from a current Active TI buck instead; for sustaining production or spares, quote the full TPS5450DDAR code and require lot and date-code traceability. Parameters verified against the TI datasheet SLVS757E Rev. E and the current Package Option Addendum.