MAX5098AATJ+T

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The MAX5098AATJ+T is a versatile, high-performance switching regulator that combines several functions in a single integrated circuit (IC). It is ideal for applications such as portable devices, battery-operated systems, automotive electronics and consumer electronics that require a step-down adjustable DC power supply. The MAX5098AATJ+T is part of a family of DC/DC switching regulators that provide precise voltage regulation with a wide range of operating frequencies, adjustable output current limiting, and output under-voltage protection.

The MAX5098AATJ+T is a CMOS single-ended, step-down type of voltage regulator. It operates from a 3.3 V to 28 V input with an adjustable output voltage from 1.25 V to 4.8 V. The output voltage can be adjusted with an external resistor divider, and the maximum output current is 1 A. The IC has two operating modes: PWM (pulse-width modulation) and PFM (pulse frequency modulation). The switching frequency is adjustable from 200 kHz to 3 MHz, while the PWM mode is available at any frequency. The IC also features adjustable current-limit, adjustable soft-start, undervoltage protection and thermal shutdown.

In order to operate, the MAX5098AATJ+T requires an input capacitance and output capacitance. The input capacitance should be an electrolytic capacitor and the recommended value is 4.7μF to 10μF. The recommended output capacitance is 10μF or greater. The input voltage must be dropped to a suitable level before it is fed into the IC. For the best results, an external resistor network should be used.

The MAX5098AATJ+T is also very efficient. It is capable of up to 96% efficiency at a 3.6 V output voltage and 100 mA load, and then it drops slightly for heavier loads. The maximum power efficiency is 82%. Due to its excellent efficiency, the IC generates very little heat even at full load, which makes it an ideal choice for a low-power application.

The MAX5098AATJ+T is designed to have excellent performance and is protected from output overvoltage and overcurrent conditions. The output is protected from a reverse-voltage condition, and the output voltage is protected from sudden changes in current. The IC also includes thermal protection, which will shut the IC down if the temperature rises too high.

The MAX5098AATJ+T is a highly flexible and versatile DC/DC switched system, making it ideal for applications where precise voltage regulation is required. It is suitable for a wide range of applications, from portable electronic devices to automotive electronic systems and consumer electronics. The adjustable output voltage, switching frequency, current-limiting and thermal protection features make it an attractive choice, while the low-power consumption ensures that it can be used in a variety of applications.

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