6A switch in a 2x2 mm footprint
The TPS61230ARNST integrates a 6A switch in a 7-VFQFN-HR package measuring 2x2 mm — that switch current is the number that drives inductor saturation rating and thermal dissipation.
Input and output voltage boundaries
Input range is 2.5V to 4.5V, so this part fits single-cell Li-ion (3.0V to 4.2V) or a regulated 3.3V rail. Output adjusts from 2.5V up to 5.5V — that 5.5V ceiling is the hard limit, not a recommendation; if the load needs 5.0V, the feedback divider sets it, but the 6A switch is available only while the output stays below 5.5V.
Active production, ROHS3, and sourcing posture
Sourcing is confirmed per RFQ — no stock-holding claim, but the active status means lead times are generally manageable through distribution channels.