XC6121C440MR-G Integrated Circuits (ICs)

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The XC6121C440MR-G is a High Accuracy Low Dropout (LDO) Voltage Supervisor integrated circuit (IC) from Tokyo-based XPower. The IC is a single voltage supervisor with an adjustable threshold voltage and open drain active low power-on-reset (POR) output suitable for various applications.

The XC6121C440MR-G is designed to be an extremely low-voltage and low-current supervisor, suitable for battery operated systems. The low-dropout voltage allows the IC to regulate a battery voltage lower than the minimum input voltage required by many monitoring systems. The IC\'s active-low POR output provides the reset signal needed to initiate power-on reset in a system.

The XC6121C440MR-G IC is specified to provide superb resistor-adjustable voltage accuracy and excellent line regulation, making it well suited to many critical applications. It features a built-in 0.5% tolerance, adjustable voltage output, a temperature range from -40°C to +125°C, and a maximum operating voltage of 7.0V.

The XC6121C440MR-G IC is typically used in battery-based applications, such as digital consumer electronics, automotive, medical and portable device applications. It is ideal as an efficient voltage supervisor for cell phones, digital cameras, portable medical devices, set-top boxes and any application that requires accurate voltage regulation.

One of the key features of the XC6121C440MR-G IC is its exceptional accuracy. The regulator\'s output voltage is adjustable from its 0.5% preset threshold to 4.6V. The IC\'s integrated adjustable reset function in combination with its low power consumption (1.8 µA) ensure that the IC is well suited for use in battery powered systems. The IC is also immune to brown-out events, making it reliable in mission-critical applications.

The working principle of the XC6121C440MR-G IC is simple. The IC is a voltage monitor that has a fixed reference voltage and an adjustable threshold voltage. When the input voltage is equal to or below the adjustable threshold voltage, the POR pin will be activated and a reset will be triggered. The reset will be triggered until the input voltage stays above the set threshold. This makes the IC well suited to monitor a battery\'s voltage and reset the system whenever the voltage drops below a user-defined voltage threshold.

In conclusion, the XC6121C440MR-G IC is an ideal single voltage supervisor for digital consumer and automotive applications, medical devices and portable devices. It is capable of providing superb voltage accuracy and excellent line regulation and is suitable for powering battery operated systems. The integrated adjustable reset function, in combination with its low power consumption, ensure that the IC is reliable in mission-critical applications.

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