Active production — still a current BOM line
The LMC7660IMX/NOPB: This is a part you can still design into a new board or restock for an existing BOM without worrying about a last-time-buy window closing. ROHS3 compliant, so it ships into EU and other RoHS-regulated markets without exemption paperwork.
This is a simple charge pump inverter: it takes a positive input between 1.5V and 10V and produces a negative output equal to -Vin. No inductors needed — just two external capacitors. The 10kHz switching frequency is low enough to keep radiated EMI manageable on a two-layer board, but the output ripple will be higher than a switching regulator running at 500kHz+. The ratiometric function means the output tracks the input: if your 5V rail droops to 4.8V, the -5V output droops to -4.8V proportionally. That matters for op-amp supplies where the negative rail needs to mirror the positive rail's tolerance. Single output, fixed negative configuration — no adjustable feedback pin. The output is -Vin, period. If you need a regulated -5V from a 12V rail, this is not the part; you want a buck-boost or inverting regulator with feedback.
8-SOIC package — board-fit notes
8-SOIC with 0.154" (3.90mm) body width — the standard narrow SOIC footprint. Surface-mount only; no through-hole option. Available in Tape & Reel (TR) for automated pick-and-place or Cut Tape (CT) for prototype quantities. Store the reels dry — SOIC packages are generally MSL 1 or 2, but the reel label will confirm the floor life.