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DC/DC converters shrink automobile physique electronics


ST’s A6983 step-down synchronous DC/DC converters present area financial savings in light-load, low-noise, and remoted automotive functions. The sequence provides versatile design selections, together with six non-isolated step-down converters in low-power and low-noise configurations, plus one remoted buck converter. With compensation circuitry on-chip, these gadgets assist decrease each dimension and design complexity.

Non-isolated A6983 converters provide a load present as much as 3 A and obtain 88% typical effectivity at full load. Low-power variants decrease drain on the car battery in functions that stay energetic when parked. Low-noise varieties function with fixed switching frequency and scale back output ripple throughout the load vary. These gadgets provide a selection of three.3-V, 5.0-V, and adjustable output voltage.

The A6983I is a 10-W remoted buck converter with primary-side regulation that eliminates the necessity for an optocoupler. It permits correct adjustment of the first output voltage, whereas the transformer turns ratio determines the secondary voltage.

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All the AEC-Q100 certified converters have a quiescent working present of 25 µA and a power-saving mode that pulls lower than 2 µA. Enter voltage ranges from 3.5 V to 38 V, with load-dump tolerance as much as 40 V.

The converters are available in 3×3-mm QFN16 packages. Costs begin at $1.75 and $1.81 for the A6983 and A6983I, respectively, in plenty of 1000 items. Free samples can be found from the ST eStore.

A6983 product web page

A6983I product web page

STMicroelectronics

Discover extra datasheets on merchandise like this one at Datasheets.com, searchable by class, half #, description, producer, and extra.

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