MAX5097AAUP+T

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DC-DC switching regulators

A DC-DC switching regulator, also known as a DC-DC converter, is an electrical voltage conversion technique that is used to convert a fixed input DC voltage to a regulated DC output voltage. This type of regulator is a power management device which efficiently regulates the output voltage by switching on and off at high frequency making it ideal for low voltage applications. DC-DC switching regulators are commonly used to provide a regulated power supply output to an array of electronic components.

MAX5097AAUP+T

The MAX5097AAUP+T is a synchronous switching regulator featuring a wide input voltage range of 4.5V to 20V and an output voltage of up to 2V with a maximum output current of 2A. The MAX5097AAUP+T is a highly integrated, 12-lead thermally enhanced surface mount device (SMD) with a voltage buck-type (step-down) output. The device provides 400 kHz of adjustable switching frequency and 3A of integrated low on-resistance (Rds(on)) DMOS switches.

Application fields

The MAX5097AAUP+T is suitable for a wide range of applications, including but not limited to industrial, automotive, communications, and networking. With its wide input voltage range, adjustable switching frequency and integrated Rds(on) switches, the device makes an ideal choice for high power and high efficiency applications, such as DC-DC converters and 12V-to-24V buck-boost converter applications.

Working principle

The MAX5097AAUP+T is a DC-DC switching regulator that uses a synchronous switching technique to regulate the output voltage. The device has an on-board controller which switches the DMOS power transistors with a corresponding frequency. The switching frequency can be adjusted via an external resistor to adapt the power requirements of the output load. When the device is powered up, the control block senses the input voltage and compares it to the reference voltage. Depending on the result of the comparison, the switch is turned on or off in order to maintain the desired output voltage.

When the switch is turned on, current flows through the inductor and the output capacitor supplies the load. When the switch is turned off, the inductor then stores the energy to ensure that the output voltage remains constant. The inductance value of the inductor is then varied by changing the switching frequency and the current limit to optimize efficiency and achieve the required output voltage.

Conclusion

The MAX5097AAUP+T is a versatile DC-DC switching regulator designed for a wide range of applications. Its wide input voltage range and adjustable switching frequency provide ample flexibility for different loads and environments. The device also features integrated Rds(on) DMOS switches and supports up to 2A of output current, making it an ideal choice for high-power and high-efficiency applications.

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