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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