LM4040AEX3-3.0+T

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The LM4040AEX3-3.0+T is a precision, single-channel, MicroPower voltage reference from Texas Instruments. It is designed specifically to provide a voltage reference in a wide range of applications. These applications range from automotive and industrial to telecommunications and consumer markets. The LM4040AEX3-3.0+T is specifically designed for applications requiring a 15V reference voltage. The voltage reference has cut-off frequency responses up to 5000kHz and micro-power consumption of 500uW.

Application Field and Working Principle

The widespread use of the LM4040AEX3-3.0+T as a PMIC Voltage Reference is due to its high accuracy and low-noise operation, combined with small footprint and low-power consumption. The use of this voltage reference has been a boon to engineers who are developing and designing complex systems, such as automotive and communications applications. The primary use of this voltage reference in electronic devices is to provide stable and reliable reference voltage.

The LM4040AEX3-3.0+T is a low-dropout (LDO) precision voltage reference. It operates in a latching mode that allows the output voltage to be maintained until the operating voltage is interrupted. The voltage reference also features a precision trimmed band gap reference to provide high accuracy and low noise operation. Additionally, the LM4040AEX3-3.0+T has an adjustable 10mA output current limit, allowing the current to be adjusted for best results with the application circuit.

The internal architecture of the LM4040AEX3-3.0+T utilizes a built-in voltage reference plus an adjustable current source. The voltage reference is used for initial voltage accuracy measurement and the adjustable current source is used for temperature drift compensation, allowing the output voltage to be maintained within specs over temperature and input voltage variations. This feature is especially important for applications such as automotive, industrial and communications applications.

The LM4040AEX3-3.0+T also has an internal overtemperature protection circuit, which protects the voltage reference from being damaged by excessive temperature. Additionally, this voltage reference has special specifications that make it suitable for automotive applications, such as the ability to handle low input voltages without affecting accuracy. The LM4040AEX3-3.0+T also offers a wide temperature range of -40°C to +125°C, making it suitable for both high and low temperature applications.

The LM4040AEX3-3.0+T is a cost-effective, high-performance voltage reference which can be used in a wide range of applications. Its high accuracy and low noise operation, combined with small footprint and low-power consumption make it ideal for various applications, such as automotive and communications applications. Furthermore, its overtemperature protection and its wide operating temperature range make it perfect for both high and low temperatures.

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