L5963Q-V0T

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Linear + Switching PMICs, also referred to as direct-current regulated power integrations, provide precise voltage and current regulation for a multitude of consumer and industrial applications. The L5963Q-V0T PMIC is a perfect example of such a reliable and versatile product. Featuring a wide input voltage range, a low current solution and I2C control, this device is suitable for a variety of applications, ranging from cellular telephones, set-top boxes and other home appliances, to industrial equipment such as ATMs, security systems and telecommunications hardware. Below, we discuss the L5963Q-V0T’s application field and working principle.

Application Field

The L5963Q-V0T, with its 40V maximum output voltage, 200KHz maximum frequency and external sync mode, is an excellent solution for the management of 5V and 3.3V system voltage rails. It is designed for applications where compact, efficient and low cost management of the power supply is essential. As the device can handle outputs of up to 5A, it is ideal for high power applications like servers, printers, drives and routers.

The set of features mentioned above, together with its capacity to regulate, protect and monitor power supplies, makes the L5963Q-V0T a universal power management solution. Thus, it can be used in a wide range of applications, including cellular phones and RF systems, wireless charging systems, wireless access points and routers, automotive electronics, home and medical appliances.

Working Principle

The L5963Q-V0T is based on the company’s standard highly integrated linear regulators. It utilizes a dual channel Low Voltage H-Bridge (LVH) architecture which allows for high output currents in addition to a wide range of voltage adjustment. The device employs an internal programmable oscillator that is synchronized with the digital enable signal for settling the current regulator output following a load step change.

The L5963Q-V0T has the capability of driving inductors connected in series with the load. This improves the overall regulator efficiency at light loads and offers transient response. The device also offers an I2C-interface capability that allows a host controller to monitor and control the output voltage levels and the current limit of the regulator.

The constant current and voltage regulation of this device makes it suitable for applications that involve high efficiency, low output noise and fast response times. To sum up, the L5963Q-V0T has established itself as a reliable and versatile power management solution, applicable to numerous consumer and industrial products.

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