ROHM Semiconductor has recently announced the development of a boost DC/DC converter with built-in MOSFET featuring the lowest current consumption in the industry, making it ideal for electronic devices powered by dry-cell batteries such as electronic dictionaries, remote controls for home appliances, and gadgets (i.e. toys, accessories). In recent years, the number of portable devices such as smartphones and wearables that utilize rechargeable batteries (i.e. lithium ion) has risen dramatically. Meanwhile, the adoption of conventional dry-cell batteries resulting from application diversification and expansion into overseas markets for electronic dictionaries, remote controls for home appliances, and electronic gadgets is progressing at a rapid pace, increasing the demand for power supply ICs that can provide greater energy savings. In response, ROHM leveraged power processes and analog circuit technologies cultivated over many years to develop power supply ICs that meet market needs, including this latest converter optimized for devices powered by dry-cell batteries. The BU33UV7NUX outputs the 3.3V necessary for driving MCUs in applications requiring 1-3V input from 1 to 2 dry-cell batteries. Pursuing lower current consumption to prolong operating time in battery-equipped devices allowed ROHM to achieve an industry-low current consumption of 7uA (vs functionally equivalent products), extending operating time by as much as 175 days over conventional products, from 540 days to 715 days (ROHM study, 50uA load current and assuming standby operation in conventional remote controls driven by 2 alkaline batteries). In addition, a load current mode switching function is built in that allows existing remote controls to support the latest high-performance systems equipped with LCD panels, providing greater energy savings in a wide range of sets. The key features are low current consumption and low-voltage drive contribute to longer battery life and load current mode switching improves efficiency in a wide range of applications.