L5973ADTR Integrated Circuits (ICs)

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The integrated circuit L5973ADTR belongs to the PMIC - Voltage Regulators - DC DC Switching Regulators category. It is a step-down DC/DC Controller for controlling a synchronous step-down converter at input voltages of up to 28V. It is designed to integrate both high and low-side MOSFETs and a full set of protection features, including input under-voltage lockout, current limit, and thermal shutdown. It offers an adjustable drop out operating from 0.5V to 2V, frequency adjustable from 100kHz to 2MHz, a PWM converter in both volt- and current-mode, adjustable output current limit and peak current limit, and various other features. The L5973ADTR is suitable for a wide range of applications, including LED driving, industrial, automotive, and residential applications.

The main feature of the L5973ADTR is step-down DC/DC controller. It is a single-phase synchronous buck converter controller, which can help to efficiently control high current and/or high voltage/power applications. It controls one high-side and one low-side MOSFET to allow for high efficiency step-down conversion of the input voltage. The controller also offers a programmable output current limit, which can be adjusted from a few to many amps, allowing for flexible control of the output current in the switching regulator. It has an adjustable drop-out voltage from 0.5V to 2V, allowing for efficient operation across a wide range of input voltages.

It offers a pulse width modulation feature, both in voltage and current modes, for continuous current/voltage regulation. It also offers a frequency adjustable from 100kHz to 2MHz, allowing for operation of the switching regulator at different frequencies, depending on the application. A programmable peak current limit function allows for limiting of the peak current in the synchronous rectifier, preventing damage in case of short circuits or current overloads. It also offers an adjustable voltage dropping, allowing for the adjustment of the output voltage accuracely.

The protection feature on the L5973ADTR are input under-voltage lockout, current limit and thermal shutdown. This helps to protect against damaging conditions, such as undervoltage, short-circuit, over-current and overtemperature.

The L5973ADTR is suitable for a wide range of applications, including LED driving, industrial, automotive, and residential applications. In LED driving applications, the L5973ADTR provides excellent efficiency and regulation for driving LED strings up to 4S and up to 4A. In automotive applications, it helps to efficiently control voltage converters, and manage battery management systems. In industrial applications, it helps to control motor and power systems, step down voltages from a wide range of input sources, and efficiently regulate current or voltage. In residential applications, the L5973ADTR can be used in a variety of power supplies, in both AC-DC and DC-DC converters for efficient, reliable and safe power conversion.

The L5973ADTR integrated circuit is an excellent choice for a wide range of applications that require high efficiency and reliable operation. It is a high-performance device, featuring various protection functions, adjustable drop-out voltages, variable frequency and adjustable current and peak current limit. The wide range of applications makes it suitable for industrial, automotive and residential applications.

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