What the 4.63V threshold means for your rail
The LP3470A463DBVR: That 4.63V threshold is set for 5V nominal rails — it trips before the output drifts out of spec for downstream logic, giving the processor time to execute an orderly shutdown before the rail collapses entirely. The 619 ms typical timeout holds the processor in reset long enough for the main supply to stabilize after power-up, which covers most crystal oscillators and PLL lock times in a 5V system.
Temperature grade and package fit
Surface-mount only, supplied in tape and reel or cut tape. The RoHS3 compliance covers the EU directive exemption list — no lead, cadmium, or phthalates above the threshold.
Active lifecycle and how to source it
For volume purchases or blanket-order coverage, the part is quoted to order. The open-drain output and 4.63V threshold are fixed — no adjustable variants in this order code. The SOT-23-5 package is a single-source footprint; no pin-compatible second source is listed on the TI cross-reference for this exact threshold and timeout combination.