LM4128CMFX-3.3/NOPB

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Power management integrated circuits (PMICs) are essential components in a variety of electronic systems, allowing the device to maintain a certain level of power. Voltage references are a type of PMIC, and the LM4128CMFX-3.3/NOPB is a popular option among users. This versatile device is designed to operate in a variety of applications and is typically used to provide a stable reference voltage. This article will discuss the application field and working principle of the LM4128CMFX-3.3/NOPB.

Applications

The LM4128CMFX-3.3/NOPB is primarily used for voltage regulation applications such as power supplies, DC-DC converters, and battery management systems. It can be used to accurately measure and maintain a steady output voltage of 3.3V for any voltage input, thereby providing a stable reference voltage for these applications. It is also suitable for a wide range of input voltages, from -1.5V to 20V, making the device suitable for a variety of applications. In addition, the device is designed to provide a high accuracy reference voltage of 3.3V, with a maximum accuracy of 0.1%.

Features

The popularity of the LM4128CMFX-3.3/NOPB is largely due to its versatile feature set. It can operate in temperatures up to 85°C, making the device ideal for industrial applications. It also has an adjustable output voltage range of 0.6V to 3V with an accuracy of 0.1%, making it suitable for use in a variety of voltage regulation applications. Additionally, the device is designed to provide low noise and low-dropout performance, making it ideal for battery management systems. The device also includes a power-on reset, enabling it to maintain a stable reference voltage even when it is powered on or off.

Working Principle

The LM4128CMFX-3.3/NOPB is based on a regulation topology that utilizes an integrated amplifier and a reference voltage source. The reference voltage source is connected to a resistor divider circuit that sets the output voltage. The amplifier is then used to compare the set output voltage to the input voltage and drive an error amplifier that adjusts the reference voltage accordingly. This regulation topology allows the device to accurately maintain a stable output voltage regardless of variations in the input voltage.

Conclusion

The LM4128CMFX-3.3/NOPB is a versatile voltage reference tailored to meet the requirements of a large number of applications. It boasts a wide range of features including adjustable output voltage, high accuracy, low noise, and low-dropout performance. The device is also designed to operate with an input voltage range of -1.5V to 20V, making it suitable for a variety of applications. The regulation topology of the LM4128CMFX-3.3/NOPB allows it to provide a stable reference voltage, regardless of variations in the input voltage.

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