LV5771QA-NH

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• LV5771QA-NH Application Field and Working Principle

The LV5771QA-NH is a high-performance DC-DC switching controller developed by IC supplier, Renesas Electronics Corporation. As a member of the LV Series, the LV5771QA-NH has been designed with a wide range of integration capabilities and provides some of the most advanced capabilities available in the industry. It has been designed as a system-level DC-DC solution for automotive and other applications with wide input voltage ranges, such as distributed power systems, telecoms and industrial applications.

The LV5771QA-NH is a pulse width modulation (PWM) regulator. An external reference voltage is used to set the output voltage. Additionally, a maximum Duty Cycle (DMax) is employed to control the output voltage in order to control the maximum voltage across the load. The output voltage is set by R7, which is a potentiometer.

The LV5771QA-NH can be used as a single-output voltage regulator, but also offers an integrated dual-output option, allowing for the simultaneous control of multiple outputs from the same controller. The LV5771QA-NH\'s integrated dual-output capability offers the ability to set and maintain the output voltage of both outputs at the same time by using a single reference voltage and a single DMax setting. Additionally, the controller offers extended operational modes such as pulse skipping, average current-mode control, decentralized current sensing and smart transient response.

The LV5771QA-NH also features a wide input voltage range, covering both 5 V and 12 V, and an integrated negative voltage regulator. The integrated differential amplifier also helps to eliminate any noise and ensures stable operation over a wide range of load conditions.

The LV5771QA-NH is an ideal solution for applications that require high power and efficiency, such as automotive systems and telecommunications infrastructure. The controller enables the implementation of robust and reliable power solutions with maximum adjustability and minimal cost. Additionally, Renesas provides a customizing service for the LV5771QA-NH that allows for custom configurations such as dual output, a wide input voltage range, and extended operational modes.

In summary, the LV5771QA-NH is a high-performance DC-DC switching controller developed by Renesas Electronics Corporation with a wide input voltage range and integrated dual-output option. It is widely used in automotive and distributed power systems due to its high power and efficiency. Renesas provides a customizing service for the LV5771QA-NH, allowing customers to build robust and reliable power solutions with maximum adjustability and minimal cost.

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