Fixed 3 V rail, 150 mA capacity — what the ratings mean for the BOM
The Texas Instruments TPS70630DBVT is a single-output positive linear regulator delivering a fixed 3 V at up to 150 mA. The 2.55 µA quiescent current keeps battery drain negligible in always-on subsystems.
Protection set and temperature grade
Over-current, thermal shutdown, reverse polarity protection, and under-voltage lockout are all on-chip — no external supervisor needed for basic fault handling. The -40 to 125 °C operating range qualifies it for under-hood automotive, industrial enclosures, and outdoor telecom gear where the board sees wide thermal cycling. The Enable pin lets a system controller gate the output for sequenced power-up or sleep modes.
Package and mounting
Housed in a SOT-23-5 surface-mount package, the part fits compact layouts where board area is tight. The SOT-23-5 footprint is a standard small-signal outline; no special thermal pad or via array is required at 150 mA.
Sourcing and lifecycle
The TPS70630DBVT carries an Active product status and is ROHS3 compliant. No end-of-life notice or last-time-buy window is in effect, which removes supply-risk for production BOMs.