65 dB PSRR at 100 Hz — clean rail for noise-sensitive loads
The TPS7A2024PDBVR delivers 65 dB of power-supply rejection at 100 Hz, rolling off to 40 dB at 1 MHz. For an RF or sensor front-end drawing 300 mA, that means a switching regulator's ripple at the fundamental and its harmonics get attenuated by two to four orders of magnitude before reaching the load.
Dropout and quiescent — the battery-system numbers
Maximum dropout is 200 mV at the full 300 mA load, so a 2.6 V input rail holds the 2.4 V output in regulation with 0 V headroom to spare. Quiescent current sits at 15 µA typical — low enough that a 1000 mAh Li-ion cell sees about 0.36 % self-discharge per year from the regulator alone. The enable pin lets the system cut the 2 mA maximum supply current when the downstream circuit is idle, which extends standby time on a battery-powered sensor node.
SOT-23-5 — small footprint, wide second-source base
Housed in the SC-74A / SOT-753 package (commonly called SOT-23-5), the part occupies roughly 3 mm × 3 mm on the board. The five-pin layout is standard across multiple LDO vendors, so a second-source swap requires only a BOM change, not a board spin.