What this part is and where it fits
The MAX20003ATPB/V+T is a single-output step-down (buck) DC-DC converter qualified to AEC-Q100 for automotive applications. It accepts a 3.5V to 36V input and delivers up to 3A with a programmable output voltage fixed at 1V or 3.3V.
Key ratings and what they mean for the BOM
The 3.5V minimum input covers cold-crank conditions on a 12V automotive bus, while the 36V maximum handles load-dump transients without external clamping. The 3A continuous output is sized for powering sensor clusters, CAN transceiver rails, or a small MCU core supply.
Lifecycle and sourcing reality
No NRND or EOL notice is on record, so it remains qualified for new designs and volume builds. ROHS3 compliance is already in place, so no additional exemption paperwork is needed for EU-market builds.
