Aimed at powering factory automation and automotive sensor applications requiring high efficiency, the industrial-grade LM5165 and the automotive-grade LM5165-Q1 micro-power step-down regulators feature a wide input voltage range and dual control modes for optimizing efficiency and printed circuit board area. The wide 3-V to 65-V operating range enables the regulators to handle the highest transients in industrial sensor and programmable logic controller applications, as well as start-stop and load-dump conditions for 12-V/24-V lead-acid and emerging 48-V lithium-ion automotive batteries. Integrated dual metal-oxide semiconductor field-effect transistors reduce PCB area, while a programmable current-limit scheme reduces inductor size. Low 10.5-µA standby current (operating with no load) enables 90% conversion efficiency at 1-mA to 10-mA loads to extend battery life in "always on" applications. Both regulators operate at junction temperatures up to 150ºC for higher temperature environments. The LM5165-Q1 is AEC-Q100 qualified for automotive applications.
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