MAX5973ETL+T

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The MAX5973ETL+T is a high performance and sophisticated power supply controller and monitor, designed to regulate and control point-of-load (POL) applications, such as notebook computers, desktop PCs, and graphic cards. This integrated device provides a complete, low-power solution with features such as Brown-Out, Over Temperature Protection (OTP), and Over Current Protection (OCP). The MAX5973ETL+T dramatically reduces the external component count, enabling designers to reduce their overall Printed Circuit Board (PCB) space, bill of materials (BOM) cost, and time-to-market.

The MAX5973ETL+T application field can be used to provide efficient and effective power delivery to all applications on system boards, providing optimized power to different devices. This makes the MAX5973ETL+T ideally suited to be used as a controller in Point-of-Load regulation applications such as graphics, memory and I/O systems.

The MAX5973ETL+T utilises current-mode control and a unique switching frequency modulation (SFC) implemented with a unique dithering technique, which provides exceptional load and line regulation. An on-chip voltage regulator tracks the PWM output voltage, which further enhances the accuracy of the overall performance.

The MAX5973ETL+T provides the designer with a complete solution, eliminating the need for additional external components such as current-sense resistors and discrete temperature sensing devices. This in turn reduces the power dissipation, easing the overall thermal management requirements of the system as a whole.

The MAX5973ETL+T has two operating modes: Linear and Burst mode. Linear mode is used for stabilized output voltages, while Burst mode is used for peak load applications. The MAX5973ETL+T also performs both Over Current and Over Temperature protection, providing protection against faults and overcurrents. The MAX5973ETL+T offers an Automatic Thermal Limit (ATL) feature that limits the amount of heat produced by the controller and limits the amount of energy consumed to maximize the efficiency of the system.

The main advantage of the MAX5973ETL+T is its dual-mode operation. In Linear mode, the controller uses a PWM-voltage mode to regulate the output voltage and current. In Burst mode, the controller uses a pulse skipping mode to reduce power consumption and regulate output current with minimal ripple and noise. The controller also monitors the temperature of the system to ensure safe operation.

The Max5973ETL+T has a built-in programmable current limit, which allows the designer to customize the current limit to meet their requirements. This feature is especially useful for graphics, memory and input/output applications. The MAX5973ETL+T also has built-in soft-start and track-and-lock features that allow the system to ramp up and maintain the regulation loop.

To sum up, the MAX5973ETL+T is an ideal device for powering applications of all types. With its integrated features and dual-mode operation, the MAX5973ETL+T provides outstanding performance and protection while reducing the number of external components. Additionally, the built-in programmable current limit and the track-and-lock features make the MAX5973ETL+T highly reliable and efficient, thus making it a worth considering option for engineers looking for an effective and efficient power controller.

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