It offers more than four hours of playback time after a brief ten-minute charge, and uses a single inductor to power multiple lanes, reducing the bill of materials (BOM) by 60 percent and reducing the overall size of the solution by 50 percent.
The PMIC MAX77659 SIMO integrates a switched-mode buck-boost charger and three independently programmable buck-boost regulators, sharing a single inductor to minimize the overall size of the solution. The regulators extend battery life by operating at 91 percent efficiency under moderate to heavy load conditions, while drawing only 5 μA of quiescent current under light load conditions. The PMIC MAX77659 SIMO supports autonomous headroom control, which reduces heat dissipation by minimizing voltage drop while providing sufficient headroom to regulate the charging current.
Features
- Fast Charging: The MAX77659 integrates a switched-mode buck-boost charger that charges wearables and hearables four times faster. A short ten-minute charge provides over four hours of playback time compared to traditional solutions that can provide only one and a half hours of playback time after charging.
- Smallest Size: The MAX77659 is offered in a tiny 30-bump wafer-level package (WLP) measuring 2.55 mm x 2.37 mm. The use of a single inductor and the integrated charger reduce the bill of materials by 60 percent for a total solution size of only 22 mm², small enough for the most compact wearable and hearing applications.
Availability
- The MAX77659 is available now in a 30-bump WLP package measuring 2.55 mm x 2.37 mm x 0.5 mm.
- The MAX77659EVKIT is available now.
