LM4040AIX3-4.1+T

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The LM4040AIX3-4.1+T voltage reference is a precision voltage reference device for power management integrated circuits (PMICs). It has a wide range of applications in mixed-signal designs, such as overvoltage protection, low-dropout regulation, and battery-charger circuits.

The LM4040AIX3-4.1+T is one of Texas Instruments’ (TI’s) precision voltage reference families of products. It is a low-power, low-dropout, 3-terminal adjustable voltage reference. The device has low temperature coefficient, low noise, and high accuracy over a wide operating temperature range of -40°C to +125°C. These features make the device suitable for a variety of applications such as digital-to-analog converter (DAC) reference, power monitoring, A/D converter reference, timing references, clock buffers, and many other uses.

The LM4040AIX3-4.1+T device operates in a voltage-output mode, providing either a regulated voltage or a regulated current source between its output (OUT) and adjustment (ADJ) terminal. The output voltage is set by the external resistor divider connected between the output and adjustment terminals. The output voltage range is from 0.5V to 4.1V with a tolerance of ±2.5%. The device can provide up to 50mA of output current 360µA of supply current.

The LM4040AIX3-4.1+T also offers excellent temperature performance. The initial accuracy of the device is ±2.5%, which is maintained over the full operating temperature range of -40°C to 125°C. Stability is further improved by the device’s temperature coefficient of 10ppm/ ˚C. Additionally, the LM4040AIX3-4.1+T has low noise and fast settling characteristics. The minimum noise output of 4µV is lower than many other low-power, low-dropout reference products. The fast settling characteristics of the device allow for faster voltage or current corrections in applications such as output-voltage-correction loops.

The LM4040AIX3-4.1+T is an ideal choice for any application that requires a low-power, low-dropout, adjustable voltage reference with a wide temperature range and high accuracy. Its high accuracy and low noise make it suitable for applications such as DAC and ADC references, power monitoring, and timing references. The device also offers fast settling characteristics, making it ideal for voltage or current correction loops.

In summary, the LM4040AIX3-4.1+T is an ideal choice for a wide range of power management applications. The device features low power consumption, low noise, high accuracy and fast settling characteristics. Its wide operating temperature range makes it suitable for harsh environmental conditions. These features make the LM4040AIX3-4.1+T a suitable voltage reference for a wide range of PMIC applications.

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