AEC-Q100 buck controller with digital telemetry
It integrates a PMBus/I²C/SMBus serial interface that lets the system monitor and adjust the output voltage in real time — a step beyond a fixed-frequency analog controller. Input range spans 4.5 V to 40 V, covering 12 V and 24 V automotive buses with margin for load-dump transients.
Two-phase synchronous buck with watchdog
This is a single-output, two-phase synchronous buck controller. The two interleaved phases reduce input ripple and spread the thermal load across the power stage, which matters when the board has limited airflow or is potted in an ECU housing. Control features include enable, frequency control, power-good flag, soft-start, and a watchdog timer — the watchdog is a practical addition for safety-critical automotive loads where a stuck controller must trigger a system reset.