135mW stereo headphone driver for automotive infotainment
The MAX13330GEE/V+ is a Class AB stereo headphone amplifier delivering 135mW per channel into a 32 Ohm load — enough drive for aftermarket head units and OEM infotainment systems where the audio path runs through a headphone jack or auxiliary output. AEC-Q100 Grade 1 qualification (-40°C to +105°C ambient) means it handles the temperature swings inside a dashboard or centre console without the output stage drifting into distortion.
Supply rails and protection for automotive bus noise
Runs on a 4V to 5.5V supply — a single 5V rail from the car's USB charger or the infotainment board's local regulator is all it needs, with enough headroom to ride through the 500mV ripple typical on automotive 5V buses. Built-in depop circuitry suppresses the thump when the amplifier powers up or shuts down, and short-circuit protection on each output channel keeps the headphone jack from taking out the amplifier if the cable gets yanked.
16-QSOP package — fits tight audio boards
Housed in a 16-lead QSOP (3.90mm body width), the same footprint as the standard SSOP-16 — the narrow pitch keeps the PCB area under 30mm², which matters when the audio section shares a board with the display driver and the tuner module. Surface-mount assembly with a standard reflow profile; no exposed pad, so the thermal path goes through the leads into the copper pour — a 0.5 oz copper plane under the package is enough for the 135mW dissipation.