1.7V to 5.5V input – what it means for a portable BOM
The TPS65911AA2NMAT accepts a supply range from 1.7V up to 5.5V, covering single-cell Li-ion (3.0-4.2V) through multi-rail systems without an extra pre-regulator. That flexibility saves a DC-DC stage and its inductor cost in space-constrained portable equipment. Quiescent supply current is 320 µA, a number that sets the idle power floor for the whole PMIC. In a battery-powered design, every microamp matters at light load — this part keeps the overhead low enough that the system can stay in a low-power state without draining the cell overnight.
Temperature grade and package – board-fit trade-offs
Expect a 4-layer minimum for signal integrity and thermal spreading. The base product number TPS65911 shares the same BGA footprint across multiple ordering options; the suffix AA2NMAT specifies the tape-and-reel delivery for automated pick-and-place. Cut tape is also available for prototyping or low-volume builds.
Active lifecycle – sourcing posture for production runs
The 98-NFBGA package is a standard TI offering, so supply continuity is typical for an active catalog PMIC.