3 A in a 2x2 mm footprint — the density decision
The TPS62086RLTT is a 3 A synchronous step-down converter from Texas Instruments, fixed at 3.3 V output, in a 7-VSON-HR package measuring 2x2 mm. That current rating in that footprint means you can route a 3 A rail without moving to a larger inductor or a bigger package — the 2.4 MHz switching frequency lets the external LC components shrink alongside the IC.
