OmniVision Technologies has introduced 12.6V 7A fully integrated synchronous boost converter WD31089Q

     Busy life, a little music to adjust the atmosphere. Portable Bluetooth speakers are popular among consumers because of their simplicity and portability. For this small portable speaker, good sound quality, large enough volume are indispensable. Therefore, the mainstream Bluetooth speakers in the market usually need to use the boost circuit to boost the battery voltage to power the audio amplifier chip, in order to obtain greater undistorted output power.

     As one of the world's leading semiconductor design companies in China, Howell Group recently introduced a fully integrated synchronous boost converter WD31089Q with 12.6V output voltage, 7A continuous switching current output capability. It is applicable to electronic products powered by single or double lithium-ion or polymer batteries, especially those portable devices with high requirements for battery service time and life.

     In addition to Bluetooth smart speaker devices, the WD31089Q is also ideal for providing high-efficiency power boost solutions for scenarios such as reverse wireless charging, USB OTG, thermal imagers, and smart door locks. These applications have high requirements on the efficiency, response speed, stability and other characteristics of the boost converter.

     High efficiency under various load conditions is crucial for prolonging the working time of the battery. WD31089Q adopts adaptive constant off time peak current mode controller to adjust the output voltage, which can not only ensure the speaker has sufficient low distortion power output, but also reduce unnecessary power consumption. Under low load conditions, it can automatically switch to power saving mode, effectively improving the endurance of smart speakers and other devices. The switching frequency can be configured in the range of 200kHz - 2.0MHz, which greatly improves the flexibility of system design.

     In addition, the WD31089Q supports a continuous switching current of no less than 7A and an output power of more than 20W. It has a built-in 4ms soft start function, 13.2V output overvoltage protection, cycle by cycle overcurrent protection, thermal shutdown protection and other protection functions. Flexible, efficient, and complete protection functions make it easy for users to design based on WD31089Q.

     The 12.6V/7A fully integrated synchronous boost converter WD31089Q solution of Howell Group can realize wide switching frequency, smaller scheme size and higher conversion efficiency. It brings efficient, stable and reliable power supply to intelligent devices, so that innovative technologies can better serve the convenient life.