LM4128DMFX-4.1/NOPB

LM4128DMFX-4.1/NOPB Application Field and Working Principle

Power Management Integrated Circuits (PMICs) are integrated circuits used for power management in different devices and installed within equipment to help controllers regulate and optimize power. One of the commonly used types of PMICs are Voltage Reference ICs, which are used to provide a consistent output reference voltage. The LM4128DMFX-4.1/NOPB is a member of Texas Instrument\'s voltage reference IC product family, designed to provide a precise output voltage reference with a wide range of applications.

This specific IC offers an output voltage of 4.1V and an input voltage range of 4.5V to 16V. It is available in a 5-pin SOT-23 package and is rated to operate over a temperature range of -40°C to +125°C. It has an output current of around 20mA and a low quiescent current of 0.5mA. It has a precise voltage regulation of 1.0% and a low temperature coefficient of 0.1mV/°C.

The LM4128DMFX-4.1/NOPB is based on a voltage-divider topology, which requires a current reference typically set with a resistor. This device utilizes a temperature-compensated voltage reference and an output voltage divider to maintain a precise output voltage. It also has an enable pin that can be used as an active low enable signal to turn-off the output. This makes it ideal for applications where power-saving is required when the system is in idle.

The LM4128DMFX-4.1/NOPB is a wide-temperature range, low-dropout (LDO) voltage reference IC, making it suitable for different applications. It can be used in circuits where a precise output voltage reference is required. It can also be used in conjunction with operational amplifiers, where it can provide a precise reference voltage to ensure accuracy. It is also ideal for automotive applications, as it can provide a stable voltage reference in varying temperatures.

In summary, the LM4128DMFX-4.1/NOPB is a voltage reference IC from Texas Instruments with an output voltage of 4.1V and an input voltage range of 4.5V to 16V. It is ideal for wide-temperature range and low-dropout applications requiring a precise output voltage. It uses a temperature-compensated voltage reference and an output voltage divider to maintain its output voltage, and has an enable pin that allows it to be turned off during idle periods. It is suitable for different circuits and can be used in applications such as operational amplifiers, automotive applications, and others.