Obsolete — sourcing strategy for the TPS65911AA2ZRCR
This is not a part you design into a new BOM — it is a line-item you fill for an existing production board that already carries it.
The PMIC operates from a 2.7V to 5.5V supply rail, which covers single-cell Li-ion through to 5V USB or regulated 3.3V bus.
98-BGA MICROSTAR JUNIOR — footprint reality
Housed in a 98-VFBGA MICROSTAR JUNIOR package measuring 9x6 mm (supplier device package 98-BGA MICROSTAR JUNIOR (9x6)). This is a fine-pitch BGA — expect a 4-layer minimum PCB to fan out the inner balls. Rework requires a bottom-side preheat profile; the package moisture sensitivity level should be confirmed before the bake cycle.
The application field is portable equipment — battery-powered, space-constrained, often mixed-signal. This PMIC integrates multiple regulators and control functions into one 98-ball BGA, saving board area versus a discrete LDO + DC/DC + sequencer layout. The trade-off: a single-point failure if the part goes end-of-life, which it now has.