Single-cell Li-Ion to 3.3 V — no drama
Switching at 2.4 MHz lets you use a small inductor — 2.2 µH or 1 µH in a 2.0 mm or 1.5 mm footprint — which matters when the board is already tight around the battery connector. The 900 mA switch current limit means this part can deliver about 600 mA to 700 mA at 3.3 V from a Li-Ion cell, depending on the dropout headroom and inductor selection.
10-SON package — thermal pad is mandatory
The 0.5 mm pitch on the outer leads is fine for a standard reflow profile; a hot-air station on a field repair is possible but the pad is small enough that the part can tombstone if the paste volume is uneven.