The MCP1824T-3302E/DC: ROHS3 compliance is confirmed, so the part clears the regulatory gate for EU and most global markets without an exemption review.
3.3 V fixed output, 300 mA — the rail it powers
This is a single-output positive LDO with a fixed 3.3 V output and a 300 mA current capability — sized for powering a small MCU, a sensor module, or a logic rail that draws under that ceiling. Quiescent current is 220 µA — moderate for an always-on rail; the Enable pin lets the system shut down the regulator and drop Iq to near zero when the load is idle.
55 dB PSRR — ripple rejection from the front end
Power supply rejection ratio is 55 dB at 100 Hz, which attenuates 120 Hz ripple from a full-wave rectified mains input by a factor of about 560 — clean enough for most analog and digital loads that do not require post-regulation filtering.
Package and board-fit note
Surface-mount mounting type with Tape & Reel or Cut Tape packaging — the TR suffix in the ordering code indicates reel delivery for automated pick-and-place.
Protection and control features
On-chip protection includes over-temperature shutdown, short-circuit current limiting, and under-voltage lockout (UVLO) — the regulator survives output shorts and thermal overload without external clamp diodes. The Power Good output provides a logic-high signal when the output is within regulation, useful for sequencing downstream loads or resetting a microcontroller on power-up.