Fixed 1 V rail, 600 mA — what it powers
The TPS62002DGS is a fixed 1 V output, 600 mA step-down (buck) converter from Texas Instruments. That 1 V rail is set internally — no feedback divider, no adjustment — so the BOM load must be a 1 V nominal supply. The 600 mA continuous rating means the downstream circuit (core voltage, I/O bank, or sensor supply) must stay under that ceiling at the highest ambient temperature. Input range spans 2 V to 5.5 V, which covers single-cell Li-ion, 3.3 V and 5 V system rails.
Synchronous rectifier and temperature grade
The 10-VSSOP package (3.00 mm width MSOP) is a common footprint; the tube delivery suits low-to-medium volume assembly.
Texas Instruments continues to manufacture it, and it is RoHS3 compliant. For a BOM line that requires a fixed 1 V 600 mA buck, this part is a straightforward current-production choice — no sourcing gymnastics needed.
BOM-fit checklist: external components and compensation
Like all non-module switching regulators, the TPS62002DGS requires external input and output capacitors and an inductor to form the power stage. The datasheet specifies recommended values and part numbers for stable operation over the full load and temperature range. No external compensation network is needed — the internal control loop is self-compensated for the typical LC filter combination. Confirm the output capacitor ESR and the inductor saturation current rating against the datasheet guidelines before committing the layout.