NJM2863F29-TE1#

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NJM2863F29-TE1 Application Field and Working Principles

NJM2863F29-TE1 is one of the voltage regulators under the category of PMIC (Power Management Integrated Circuit). It is more specifically a type of linear voltage regulator referred to as an LDO (Low Drop Out) voltage regulator. An NJM2863F29-TE1 is offering an output voltage of 2.85V on either a 3.3V or a 5V input. In addition, this particular NJM2863F29-TE1 has an ultra-low operating current of just 0.22mA and an ultra-low shutdown current at just 0.1uA.

Regulating and Scaling Output Voltage

The crux of the NJM2863F29-TE1’s operation is to adjust and regulate the output voltage regardless of any changes in the input supply voltage, while still maintaining the required current. This is done by using a series of resistors connected in a voltage divider network. The two external resistors, R1 and R2, are connected to the input and output of the regulator, with the resistors chosen to limit the output voltage to the desired level.

Usage and Beneficial Characteristics

The NJM2863F29-TE1 has a wide operational supply voltage range of from 1V to 5.5V. It also has other appropriate characteristics such as its low ESR (Equivalent Series Resistance), high ripple rejection with a PSRR (Power Supply Rejection Ratio) of 28dB, low quiescent current consumption, and fast transient response.

In addition, the NJM2863F29-TE1 offers high accuracy with a positive output voltage tolerance of just 0.1%, and low temperature coefficient of just 0.005%. All of these performance characteristics make the NJM2863F29-TE1 a perfect fit for applications which require an extremely low output voltage, and with acceptable levels of precision and accuracy.

Applications

Due to the low operating current, low output voltage and excellent accuracy, the NJM2863F29-TE1 is suitable for many applications, including but not limited to portable telephones, personal digital assistants (PDAs), laptop computers, voltage references and even automotive applications.

Its slim sizing due to its dual SOP8 package makes the NJM2863F29-TE1 an excellent choice for devices which are small in size, such as PDAs, aiming to reduce the overall size of the device.

Conclusion

NJM2863F29-TE1 is an LDO voltage regulator, offering an output voltage of 2.85V. It has an ultra-low operating current of 0.22mA, with an ultra-low shutdown current at 0.1uA, and a wide operational supply voltage range from 1V to 5.5V. Other notable characteristics include high ripple rejection of 28dB, low ESR, low quiescent current consumption, and fast transient response.

Due to its excellent performance, the NJM2863F29-TE1 is suitable for many applications such as the ones mentioned, particularly small portable devices. It is one of the ideal choices for those looking for low output voltage and accuracy, and with a minimal size due to its dual SOP8 package.

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