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Automotive Primary & Secondary DC/DC Converter | BD9P & BD9S Series | ROHM Semiconductor
Rohm
ROHM offers a comprehensive of automotive-grade primary and secondary buck DC/DC converters. The 12-model BD9P series ensures stable operation during battery input voltage fluctuation, minimizing output overshoot. This eliminates the need for an additional output capacitor typically used as an overshoot countermeasure. In addition, adopting a new control method makes it possible to achieve both high efficiency and fast response (which are in a trade-off relationship), providing 92% conversion efficiency at heavy loads (at 1A output current) as well as 85% efficiency at light loads (1mA), ensuring class-leading efficiency across the entire load range.
The BD9S series includes functions that improve system safety, including output voltage monitoring and startup time adjustment functions. These secondary buck converters support output currents up to 4.0A in industry-leading 2mm and 3mm square space-saving packages that deliver high efficiency operation, resulting in a best-in-class power conversion efficiency of 90% (at 3.6V input/1.8V output). In addition, 2.2MHz switching combined with fixed frequency current mode control prevents interference from the AM band and allows the use smaller peripheral components, contributing to greater miniaturization and power savings in safe driving support modules.
Learn more about the BD9P series DC/DC converter: https://bit.ly/3o5gLJ6
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