1A fixed-output LDO in TO-220-3 — dropout and ripple rejection
The MCP1826S-1802E/AB is a single-output positive LDO regulator delivering a fixed 1.8V at up to 1A continuous, in a through-hole TO-220-3 package. Quiescent current is 220 µA typical, which matters for always-on rails where the regulator's own draw competes with the load's sleep current. Power-supply rejection ratio is 60 dB at 100 Hz — this attenuates 100/120 Hz ripple from a rectified mains supply by a factor of 1000, keeping the output clean for analog or RF front-ends.
Protection and temperature grade
On-chip protection includes over-temperature shutdown, short-circuit current limiting, and under-voltage lockout (UVLO) — the regulator survives a sustained output short without damage.
Active production and compliance
The part is RoHS3 compliant.