The MAX15006BATT+T is a fixed 5V output linear regulator from Analog Devices, delivering up to 50 mA from a maximum 40 V input rail. Dropout voltage is 0.525 V max at the full 50 mA load, so the input must stay at least 5.525 V to maintain regulation — a 12 V nominal bus with 0.5 V ripple still has margin. Quiescent current is 17 µA typical, with a maximum supply current of 150 µA; the regulator's own draw is well below the load, suiting always-on or battery-backed rails where every microamp counts.
PSRR and noise rejection in the supply chain
Power-supply rejection ratio is 66 dB at 100 Hz, meaning the output attenuates 100 Hz ripple (e.g. from a rectified mains or a switching pre-regulator) by a factor of roughly 2000 — a 100 mVpp ripple on the input becomes about 50 µVpp at the output. This makes the MAX15006BATT+T a clean post-regulator for noise-sensitive analog loads (ADC reference, op-amp supply) where the upstream rail carries low-frequency ripple.
Temperature grade and protection
Built-in protection includes over-temperature shutdown and short-circuit current limiting — the regulator survives a sustained output short without damage.