Power
Power reference design for wireless earbud battery
New, completely wireless earbuds are charged by the battery inside their carrying case - a design that requires small solution sizes and efficient power components.
Additionally, the large demands in this market are increasing the need to deliver equivalent functionality more economically.
This ultra-low power reference design exhibits a charging case battery and boost converter powered from USB input.
Features
- 18µA ultra-low standby current
- Supports up to 1.5A fast charging current in the charging case
- Supports pass-through mode when input higher than the output
- Higher than 85% charging efficiency
- Small solution size
- Supports down to 1mA charging accuracy in the earbuds
Click here for more information.