MAX8923XETI+TGA8

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Power management integrated circuits (PMICs) are digital integrated circuits (ICs) used to manage, control and regulate power for various types of digital circuits, including voltage regulation, power sequencing, and power systems optimization. The MAX8923XETI+TGA8 is one such PMIC, specifically designed for voltage reference applications. This document provides an overview of the MAX8923XETI+TGA8 usage, its features, working principle, and application field.

Overview of MAX8923XETI+TGA8 Usage

The MAX8923XETI+TGA8 is a monolithic voltage reference specifically designed for the voltage reference applications. It operates over a wide voltage range and is designed for a variety of general-purpose AC/DC applications. Its features include an adjustable margin control and dual/triple/quad channel select. Additionally, the MAX8923XETI+TGA8 is also capable of precise temperature compensation, low-noise linear transistor biasing, and fast settling time for dynamic step loads.

Features

The MAX8923XETI+TGA8 includes a range of standard features to meet various voltage reference application needs. These features include:

• Wide operating voltage range (3.3V to 7.0V)
• Adjustable operating margin
• Dual/triple/quad channel select
• Low-noise linear transistor biasing
• Fast settling time for dynamic step loads
• Wide temperature range (–40°C to +85°C)

The MAX8923XETI+TGA8 is also highly reliable and easy to use. It has a 40-pin lead-free package able to endure a wide range of temperatures and factory-trimmed discrete voltages.

Working Principle

The MAX8923XETI+TGA8 works by controlling the variation of an external reference voltage. An input voltage is applied through a voltage reference circuit, which powers an output transistor. The output voltage is then adjusted as needed based on factors such as the environmental temperature and the load current. The output is also isolated against temperature and load changes, so the output voltage is always maintained within an acceptable tolerance range.

To optimize power efficiency, automated power management features such as single-cycle mode and sleep mode can be enabled to reduce the quiescent current (Iq) drawn by the device. The output voltage is set by adjusting the voltage reference circuit voltage, and the quiescent current (Iq) is adjusted based on the parameters such as loading and temperature.

Application Field and Benefits

The MAX8923XETI+TGA8 is suitable for a number of applications in various fields. It is mainly used for voltage reference applications, such as automotive and industrial systems, which require an adjustable voltage range and precise temperature compensation. It is also used in other applications where reliable and greater accuracy is needed, such as medical, military and aerospace systems. The MAX8923XETI+TGA8 brings numerous benefits to those applications such as :

• Excellent accuracy: the MAX8923XETI+TGA8 offers excellent accuracy with a temperature drift of only 1mV/°C.
• Low-noise operation: this voltage reference provides low-noise linear transistor biasing and fast settling time for dynamic step loads.
• Reliable operation: this voltage reference device is highly reliable and capable of providing stable results over a wide temperature and load range.
• Enables near-instant operations: this voltage reference device enables near-instant operations, making it well suitable for low-power and fast-response systems.

Conclusion

The MAX8923XETI+TGA8 is a monolithic voltage reference designed for voltage reference applications. It features a wide operating voltage range, adjustable margins, and low-noise linear transistor biasing. It is also highly reliable, enabling near-instant operations. The MAX8923XETI+TGA8 is suitable for a number of applications in various fields, including automotive, industrial, aerospace and military systems.

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