MAX1589AEZT180+T

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The MAX1589AEZT180+T linear voltage regulator is a purpose-built integrated circuit designed to provide a stable output voltage over an input voltage range that can exceed its output voltage. Developed for integrated systems, the MAX 1589AEZT180+T enables applications that contain multiple voltage domains, such as microprocessors, digital and mixed-signal integrated systems. It offers a wide range of adjustable output voltages and can provide current up to 3 A without any heatsink.

The MAX 1589AEZT180+T has a wide input voltage range of 2.7V to 6.0V, and a high output voltage accuracy of 0.8%. The reverse battery protection and thermal shutdown features ensure the device is fully protected against any over- or under-voltage conditions. The temperature range, up to 125℃, makes it suitable for industrial and automotive applications. The wide input voltage range and the high-voltage flexibility makes the MAX 1589AEZT180+T ideal for mobile and battery-operated applications.

The device is mounted in a 4x4mm, 14-pin, TQFN-package and is designed to meet the needs of low-noise and high-performance applications. The power management and low-noise features of the MAX 1589AEZT180+T make it suitable for powering utility meters, smart cards, automotive sensors and other low voltage systems.

The MAX 1589AEZT180+T belongs to a family of linear voltage regulators, or low dropout regulators (LDOs). LDOs are linear voltage regulators with an output voltage that is only slightly lower than the input voltage. They regulate the output by means of an error amplifier, and use a resistive element to reduce the input voltage to match the reference voltage of the error amplifier.

The MAX 1589AEZT180+T linear voltage regulator generates an output voltage according to the equation Vout = Vref + Vsense. The Vref is the reference voltage of the error amplifier and the Vsense is the voltage across a sense resistor. The sense resistor will be adjusted to adjust the output voltage. The Vref is generated on-chip and it is fixed at 1.214V, while the Vsense can be adjusted externally.

The MAX 1589AEZT180+T offers many features to facilitate the power supply design. First, the wide range of adjustable output voltages allows the designer to use a single device to provide multiple rails with different voltages. The internal startup current limit resistor limits the output current when the voltage regulator is enabled, protecting the system components from excessive inrush current. The low quiescent current (<1uA) and low dropout voltage (<200mV) helps to conserve power and improve efficiency. The thermal shutdown and over-voltage protection features also help to protect the device against over-voltage and over-current conditions.

In summary, the MAX1589AEZT180+T linear voltage regulator is a high performance, low dropout device designed to provide adjustable output voltages from 850mV to 6V. It features a wide input voltage range of 2.7V to 6V, a high output voltage accuracy of 0.8%, and a quiescent current of <1uA. With a wide range of adjustable output voltages and integrated protection features, the MAX1589AEZT180+T is an ideal solution for automotive and industrial applications that demand reliable power delivery and excellent noise performance.

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