3.3V fixed output, 800mA capacity
This is a single-output positive fixed LDO regulator delivering 3.3V at up to 800mA. The fixed output means no external resistor divider is needed — just the input and output capacitors. The 1.3V maximum dropout at full load sets the minimum input-to-output headroom: for a clean 3.3V rail, the input must stay above 4.6V under load.
75dB PSRR and protection features
The 75dB power-supply rejection ratio at 120Hz means this LDO attenuates 120Hz ripple from a rectified mains supply by a factor of about 5600 — useful for powering analog circuits, sensor front-ends, or audio stages where line-frequency hum must stay off the rail. Built-in over-current and over-temperature protection let the part survive a sustained short or thermal overload without external foldback circuitry.