3.3V fixed LDO with 150 mA ceiling
The MAX8877EZK33+T: This is a single-output positive LDO delivering a fixed 3.3V rail at up to 150 mA continuous — the current ceiling for the TSOT-23-5 package without external heatsinking. The 165 mV typical dropout at full load means the input rail needs only 3.465V minimum to maintain regulation; a 3.6V or 5V supply provides comfortable headroom.
Protection set and quiescent draw
Four protection circuits are integrated — over-current, over-temperature, reverse polarity, and short-circuit — covering the common failure modes in battery-powered and industrial rail applications without external clamp diodes. Quiescent current sits at 180 µA typical, with a maximum supply draw of 100 µA in shutdown via the Enable pin — low enough for always-on peripherals on a 3.7V Li-ion cell.
TSOT-23-5 footprint and temp grade
Housed in the thin SOT-23-5 (TSOT-23-5) package, the part occupies roughly 3×3 mm board area — suited for space-constrained portable or sensor-node designs where a larger SOT-223 would not fit.
Compliance and documentation
RoHS3 compliant per the manufacturer's declaration — no exemption-based lead content in the termination finish.