Rohm today announced the availability of a buck-boost DC/DC converter with integrated MOSFET, the BD83070GWL. It combines high efficiency with best-in-class current consumption, making it ideal for IoT, wearables, and portable devices.

In recent years, the proliferation of battery-driven electronic devices has increased the demand for smaller components that can provide the necessary design flexibility and space for integrating new functions while minimizing power consumption to maximize battery life.

In response, Rohm developed a power supply IC that meets market needs by leveraging a vertically integrated production system utilizing in-house analog design expertise and specialized power processes. At the same time, high-efficiency ultra-low-power boost (BU33UV7NUX) and buck (BD70522GUL) power supply ICs are available that allow users to significantly extend the operating time of battery-powered applications. With the new BD83070GWL, ROHM expands its offering with a buck-boost IC featuring industry-leading performance.

The BD83070GWL was developed to be the best-in-class product for low power eco-friendly devices used in compact battery-driven applications. The built-in low-R_DS(on) MOSFET and low control current circuitry achieve an industry-leading power conversion efficiency of 97% during operation (@ 200mA load current) along with class-leading 2.8μA quiescent current consumption. This contributes to longer operating time in compact battery-driven devices, prolonging battery life by as much as 1.53 times when compared to other conventional products during standby (100μA load current). An evaluation board integrating this converter is also available.

In addition to prolonging operating time in battery-driven devices by boosting battery life 1.53 times over conventional solutions during standby (100μA load current), the compact (1.2mmx1.6mm) BD83070GWL provides the following features.