MAX1817EUB+T

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MAX1817EUB+T is a type of DC-DC switching regulator, specifically part of the family of DC-DC “step-down” regulators offered by Maxim Integrated Products. This device is designed to convert a single output DC input rail to any desired output voltage, providing a cost effective and space-saving solution for providing power to digital, analog and mixed-signal applications.The primary application of the MAX1817EUB+T is to provide a regulated output voltage within a range of 0.8V to 2.2V while providing a single output voltage supply to the digital and mixed signal devices of the system. It features an integrated synchronous Rectenna and 4-phase buck controller which enables a broad input voltage range from 2.6V to 20V and provide a high PSRR of 120dB at 1KHz.In addition, the MAX1817EUB+T has an integrated current-mode control loop for easy initial setup and great transient response and load regulation. Moreover, it has excellent thermal performance with a maximum junction temperature of 150°C and an integrated thermal shutdown functionality.The MAX1817EUB+T also features an integrated loop compensation network to enable a fast transient response. The loop compensation enables the maximization of the step-down ratio, while reducing the power conversion degree and maintaining a flat frequency response. Furthermore, it features an integrated power switch which offers excellent noise performance and ripple rejection.In terms of the working principle, the MAX1817EUB+T works by monitoring the input voltage and converting it to an output voltage as required. The input voltage is received through an external sync-rectenna circuit and converted to a voltage reference. It then utilizes a controlled modulation to generate an output voltage, which is stored in an integrated output capacitor and delivered to the output.This closed loop process is repeated at a predetermined frequency(200KHz). It is then synchronized with the input voltage to ensure that the output voltage remains constant. It also utilizes the maximum ratio of the output voltage to the input voltage to reduce the power loss.Overall, the MAX1817EUB+T is an ideal choice for applications which require a single output voltage supply and a high PSRR. Its integrated synchronization and current-mode loop ensure maximum efficiency and improved output performance. With its wide input/output voltage range, it is also suitable for multiple applications, including automotive and industrial systems.

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