ROHM is aiming to power the sensors in self-driving cars with a family of compact dc-dc converters. Called the BD9S series, the parts support output currents from 0.6 to 4.0A and come in 3x3mm packages, and operate at up to 90% efficiency (3.6Vin 1.8Vout). Switching is current-mode, resulting in fast load transient response, and fixed 2.2MHz ...
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from Electronics Weekly https://www.electronicsweekly.com/news/products/power-supplies/rohm-aims-car-sensors-mini-dc-dc-converter-2018-09/
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