Deutsch1.3x Longer Battery Life
ROHM has recently announced the development of a buck-boost DC/DC converter with built-in MOSFET featuring the lowest current consumption in the industry, making it ideal for electronic devices powered by batteries such as electronic dictionaries, remote controls for home appliances, and items such as toys, and other portable electronic devices.
This latest converter is optimized for devices powered by single use batteries. The BU33UV7NUX outputs the 3.3V necessary for driving MCUs in applications requiring 1-3V input from 1 to 2 batteries. Pursuing lower current consumption in order to prolong operating time in battery-equipped devices allowed ROHM to achieve an industry-low current consumption of 7µA (vs functionally equivalent products). This can extend the operating time by as much as 175 days compared to 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 applications.
Key Features
- 7µA current consumption
- input voltages as low as 0.9V
- built-in battery leak detection
- PFM/PWM switching control
- efficiency up to 94%
Applications
- Electronic dictionaries
- Remote controls
- Electronic gadgets (i.e. toys, accessories)
- Wearables
- Electric toothbrushes
… and other sets driven by 1-2 dry-cell (1 to 3V) or button-type li-ion batteries
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