The MAX4380EXT is a single voltage-feedback op-amp from Maxim, built for applications that need wide bandwidth and fast slew rate in a tiny footprint. The -3 dB bandwidth of 210 MHz and slew rate of 485 V/µs place it squarely in the high-speed category — think video line drivers, ADC front-end buffers, or pulse-processing stages where settling time and slew-induced distortion matter. The rail-to-rail output lets it swing close to the supply rails without clipping, which is useful in single-supply designs where you need the full output dynamic range. Supply span runs from 4.5 V to 11 V, so it works on 5 V or 9 V rails but won't tolerate a 3.3 V supply — that's a constraint to check against your power budget. The SC-70-6 package is about 2 mm × 2 mm, so board space is minimal, but the fine pitch means your PCB assembly partner needs to be comfortable with small passive-compatible footprints.
SC-70-6 — the footprint reality
The supplier device package is SC-70-6, a 6-lead surface-mount package roughly 2.1 mm × 2.0 mm with 0.65 mm pitch. It's a common footprint shared with many small-signal transistors and logic gates, so layout libraries usually have it. The tiny size helps in dense boards but demands careful soldering — reflow profile per the datasheet, and MSL level should be verified from the lot date code.