The MAX8888EZK33+T comes in a TSOT-23-5 thin package (SOT-23-5 Thin, TSOT-23-5) with a supplier device package of TSOT-23-5. Surface-mount assembly; the tape-and-reel (TR) or cut-tape (CT) packaging options suit both prototype and production volumes.
Regulator parametrics and the so-what
This is a single-output positive LDO with a fixed 3.3 V output, delivering up to 300 mA continuous. The maximum dropout voltage is 0.15 V at full load — meaning the input rail needs to stay above 3.45 V to maintain regulation across the load range. With a quiescent current of 100 µA and a maximum supply current of 65 µA, the regulator's own draw is low enough for battery-powered designs where every microamp counts.
PSRR and noise rejection
The power-supply rejection ratio is 40 dB at 1 kHz. This means ripple on the input at 1 kHz is attenuated by a factor of 100 — a 100 mVpp input ripple becomes roughly 1 mVpp on the output. For analog front-ends or precision reference rails, this rejection drops at higher frequencies; above 100 kHz the LDO's loop gain rolls off, so upstream switching noise at those frequencies needs additional filtering ahead of the regulator.
Protection and control features
Built-in protection includes over-current, over-temperature, and short-circuit shut-down. The Enable pin allows the output to be gated by a logic signal — useful for sequencing multiple rails or powering down a subsystem to save leakage. The Power Good output flags when the output is within regulation, so a downstream load or supervisor can wait for the rail to settle before enabling.
Temperature grade and operating envelope
The part is not AEC-Q100 qualified, so it is not specified for under-hood or extended automotive temperature use.
Analog Devices lists this part as Active in production. RoHS3 compliant.