Part Number Search

Cross Reference Search

About information presented in this cross reference

The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
TOSHIBA is not responsible for any incorrect or incomplete information. Information is subject to change at any time without notice.

Keyword Search

Parametric Search

Stock Check & Purchase

Select Product Categories

Select Application

Find everything you need for your next product design. Simply select an application and click through to the block diagram to discover our semiconductor solutions.

New Products / News

Innovation Centre

At the Toshiba Innovation Centre we constantly strive to inspire you with our technologies and solutions. Discover how to place us at the heart of your innovations.

Wireless Earphone Solution

For Long Time Operation with a Small Battery on a Wireless Earphone
Semiconductor Solutions for Air Conditioners

The wireless earphones market is expanding due to improvements in audio delay during gaming and video playback, as the wireless earphones comply with Bluetooth 5.0 and the communication speed increases. Wireless earphones have a built-in battery, but the size of the earphone housing is limited, so the size of the battery also decreases. This tiny battery should drive wireless communications, audio codecs, speakers, hands-free microphones, and even microphones with noise-cancelling function. Not only operating many functions, but also long time operation is required. So it is necessary to save power in electronic circuits and to perform efficient power management. In recent years, a fully isolated type of wireless earphone, called a true wireless earphone, has no cables on either of the left or right earphones, and is the most attractive category. Toshiba's lineup includes LDO regulators designed to realize power supply management for efficient operation of various functions with high functional LSIs with limited battery capacity of wireless earphones, and TVS diodes (ESD protection diodes) designed to protect batteries and internal circuits from power line abnormalities. These products have compact and lightweight package to realize low current consumption and long time operation with a small battery of wireless earphones.


  • Low operating current of power management ICs for system energy savings
  • Compatible with immunity test standards (IEC-61000-4-x) (TVS diodes (ESD protection diodes))
  • Additional functions in a small and light package for reducing board space
  • Useful application notes, reference designs, and other documents on the web save design cycle time

Wireless Earphones

Earphone Case

Other block diagrams

Details of earphone case / Power supply lines (Load switch)
Example of power supply circuit using MOSFET

Application / Wireless Earphone

Details of earphone case / Battery management
Example of power supply monitoring circuit for battery charging and discharging system

Application / Wireless Earphone

Details of earphone case / External connector
Protection circuit example of external connector part

Application / Wireless Earphone

Details of earphone / Battery management
Example of power supply monitoring circuit for battery charging and discharging system

Application / Wireless Earphone

Details of earphone / Power supply circuit
Example of power supply

Application / Wireless Earphone

Details of earphone / Circuit protection
Protection circuit example of internal IC

Application / Wireless Earphone

Other Technical Content

Uninterruptible Power Supply (UPS) Solution
Improving power supply performance and protection function contributes to energy saving and stable operation
Blood glucose meter solution
Realize high precision measurement and low power consumption in a small size
Surveillance Camera Solutions
Increasing demand of Functions and High resolution video
Programmable Logic Controller (PLC) Solution
Contributes to energy saving and stable operation by improving power supply performance and protective functions
Thermostat Solutions
Contributes to Product miniaturization, Long-life operation and Improvement of Quality and Reliability
Air Cleaner Solutions
Cleans Dirty Air by Linking "Filtration" with High-performance Filters and IoT
IoT sensor solutions
Ultra-low power consumption with high precision sensing in small size
Electric Toothbrush Solution
How to Obtain Oral Care that cannot be achieved by Human Hands?
Semiconductor Solutions for Air Conditioners
How to Increase Air Conditioning Performance without Increasing Power Consumption?
Smart Speaker Solution
Towards home network hub adding displays and cameras
Semiconductor Solutions for Servers
Contribute to Energy Saving and Stable Operation by Improving Power Supply Performance and Protective Functions
SSD Solution
Towards achievement compact size, high reliability and long life
Smartwatch Solution
To Realize More Features, Longer Operating Time and Smaller Size
Cordless Power Tool Solution
To Realize Compact, Light, Easy-to-Carry and Easy-to-Work with Long Time Operation
A new window will open