Active LDO for low-power 1.8V rails
The BH18PB1WHFV-TR: Quiescent current sits at 4µA typical, with a maximum supply current of 40µA — this matters when the regulator powers always-on logic in battery-operated gear, where the LDO's own draw can dominate standby power. PSRR is 60dB at 1kHz, a useful figure for cleaning up ripple from a preceding buck converter before it reaches a sensitive analog or RF load.
Protection and control for sequenced power-up
An Enable pin lets the system power this rail on command, while integrated over-current, over-temperature, and soft-start protect the load and the regulator itself during startup or fault conditions.
Package and sourcing reality
Housed in a SOT-665 (also called 5-HVSOF), this is a surface-mount package suited for compact PCB layouts in handheld or space-constrained designs. Supplied in tape and reel or cut tape options. Sourced to order against the BOM; availability and current pricing confirmed at RFQ time.