MAX765ESA+

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The MAX765ESA+ is a monolithic, high efficiency, step-down dc-dc converter. It integrates a power MOSFET, switch-mode regulator, and the other necessary circuits into a tiny 10-pin low-profile miniature package. The MAX765ESA+ has a very small footprint and is one of the simplest, lowest cost, and most efficient dc-dc converters available. It is ideal for use in automotive, industrial, telecom, and other systems requiring high current levels, tight regulation tolerance, small size, and low cost.

Application Field

The MAX765ESA+ is designed for use in automotive, industrial, or telecom applications. Due to its 10-pin package, small size, high current, and high efficiency, it is ideal for applications such as battery powered systems, polarity reversal protection, and switched power supplies. The MAX765ESA+ can also be used to efficiently power audio amplifiers, CPU cores, and other high current applications.

Working Principle

The MAX765ESA+ utilizes a synchronous buck converter circuit to convert input voltage levels from one level to another. A power MOSFET switch is used to convert the incoming voltage to an output voltage through a series of on and off cycles. The frequency of the on and off cycles is controlled by an internal clock, and the duty cycle of the on and off cycles is controlled by an internal power regulation loop. The MAX765ESA+ also features an internal start-up regulator designed to quickly charge an external supply capacitor. The start-up regulator also allows for a pre-programmed output voltage startup.

The MAX765ESA+ features a wide input voltage range of 4.5V to 30V and an adjustable output voltage range of 0.7V - 28V. Output voltages can also be externally programmed using a resistive divider network. The MAX765ESA+ is capable of providing up to 2A of output current, and its high efficiency of up to 94% ensures that it will reliably operate in a wide variety of applications. In addition, the MAX765ESA+ is protected against overcurrent, overvoltage, over temperature, and undervoltage conditions.

Conclusion

The MAX765ESA+ is an ideal dc-dc converter for a wide range of applications. Its small size, high current, high efficiency, and wide input/output voltage range are advantageous for a variety of automotive, industrial, and telecom applications. The MAX765ESA+ utilizes a synchronous buck converter circuit and an internal power regulation loop to ensure reliable operation and tight regulation tolerance. The onboard start-up regulator also allows for easy and efficient startup.

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