MAX5073ATI+T

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Introduction

MAX5073ATI+T is a synchronous DC/DC buck regulator that can be used as a discrete device as well as an integrated part of a system solution. It is a stepping down regulator, designed to provide regulated output voltage from an input voltage of up to 18V and delivers output current up to 10A. It is suitable for non-isolated applications, including automotive and industrial applications.

Application Field

MAX5073ATI+T is suitable for various DC/DC applications, such as automotive computers, radar systems, and communications infrastructure. It is designed to support high-efficiency of up to 97.5% over a wide range of load and line conditions and offers high-output power density with very low external components.

Working Principle

The MAX5073ATI+T as buck regulator is composed  of two main sub components: the switching power stage and the modulator stage. The switching power stage includes a high-side switch and a low-side switch which, when controlled by a PWM signal, form a buck converter circuit. The modulator stage, the main control loop of the switching power stage, works by changing the cycle time of the PWM signal. This allows the converter to operate in continuous conduction mode and adjust the output voltage.

Features

The MAX5073ATI+T has some noteworthy features, such as a built-in, precision, 500 kHz fix-frequency, PWM controller. This feature eases the design process, since no additional loop compensation components are required. The fixed frequency also simplifies EMI filtering, resulting in smoother operation. It also has programmable overvoltage, undervoltage, and overcurrent protection. Furthermore, this regulator is pin-compatible with regulators from other integrated circuits, enabling simpler design integration.

Conclusion

In conclusion, the MAX5073ATI+T is a high-efficiency, high-power, synchronous buck regulator that can be used as a discrete device or an integrated part of a system solution. It supports an input voltage of up to 18V and offers several features which make it suitable for various DC/DC applications. For automotive and industrial application, the MAX5073ATI+T is an ideal choice.

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