8D121W72PN-LC

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

8D121W72PN-LC is a type of integrated circuit (IC). It is used in different application fields such as mobile phones, digital cameras, and more. The advantages of using 8D121W72PN-LC include improved reliability, improved system performance, and reduced size. In this article, we will focus on the application field and working principle of 8D121W72PN-LC.

8D121W72PN-LC is mainly used in mobile phones. It is a single-chip switching power supply with a step-down DC/DC conversion. The IC has a continuous output current of 1.2A and features a full-flow PWM control. The device is suitable for portable battery-powered applications and operates on a wide input voltage range from 3.0V to 5.5V. 8D121W72PN-LC provides high power efficiency via synchronous rectification and low quiescent current.

In digital cameras, the 8D121W72PN-LC is used for the power supply of the image sensor and can be used for both step-down and step-up conversions. It is also suitable for single-cell Li-ion battery applications, providing constant voltage and current limiting to the system. The IC requires an external control loop, as well as an external reference voltage.

The 8D121W72PN-LC also used in wearable devices, such as fitness trackers. It helps to maximize battery life by providing a low quiescent current standby mode. The device can be programmed with the adjustable soft start feature to slow start-up times and reduce inrush current.

The working principle of 8D121W72PN-LC is based on a switched-mode power supply. This type of power supply is different from the traditional linear power supply, as it is much more efficient and requires less space. The IC includes an internal pulse width modulation (PWM) controller and an error amplifier that control the PWM switch. The PWM controller also monitors the output voltage and regulates the output to maintain a constant voltage. The IC has built-in temperature protection and over-voltage/ over-current protection.

In conclusion, 8D121W72PN-LC is a useful IC that has many applications in mobile phones, digital cameras, and wearable devices. Its main function is for power supply, and it provides high efficiency and reliability through its synchronous rectification and low quiescent current. The working principle of the device is based on a switched-mode power supply.

The specific data is subject to PDF, and the above content is for reference