TPS5430DDAR is a 3 A step-down switching regulator from Texas Instruments in an 8-pin SO PowerPAD package, for distributed power architectures — point-of-load rails derived from a higher-voltage bus. Its advantage over linear regulation is efficiency: at 3 A output, a switcher wastes far less power as heat, which shrinks heatsinking and improves system reliability. Selection advice: the DDA suffix denotes the thermally enhanced PowerPAD package and R tape-and-reel packing — thermal performance depends on the PowerPAD soldered to copper, so follow the datasheet layout guidance. Switching regulators need their inductor and compensation network designed around the chip; confirm your input/output voltage and current requirements against the datasheet before substituting a different regulator.
Ordering-code highlights reviewed against official manufacturer documentation.
TPS5430 is available in the following manufacturer order codes. They share the same Step-down regulator design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.
| Order code | Package | Packing | Key difference |
|---|---|---|---|
| TPS5430DDA | SO PowerPAD-8 | Tube | Tube |
| TPS5430DDAR | SO PowerPAD-8 | Large tape and reel | Tape and reel |
Exact MPN, manufacturer and suffix
Supplier type, quantity and freshness
Lot, labels, photos and documents
Price, lead time, payment and shipping
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
In-depth buyer guides on the market forces affecting this part category — allocation, mergers and technology shifts.
These are order-code variants of the same Texas Instruments series. They share the core design; the ordering code selects the exact configuration — TPS5430DDA: Tube. TPS5430DDAR itself is the SO PowerPAD-8 configuration. A code that differs by even one character may be a different device, so always quote the complete code exactly as it appears on your BOM.
From the verified technical profile: Topology: Step-down buck converter; Input voltage: 5.5 V to 36 V; Continuous output current: 3 A. These are the catalog-recorded values for TPS5430DDAR — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.