ISL6455AIRZS2698

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ISL6455AIRZS2698 Voltage Regulator

ISL6455AIRZS2698, manufactured by Intersil, is a special purpose voltage regulator specially designed for high voltage applications. It is a single channel, low quiescent current and low dropout (LDO) regulator that features a wide input voltage range of 3.2V-17V, and can support output voltages from 0.75V to 16V. This LDO is designed for both stationary and portable applications such as telecommunications, networking, automotive, point of load, and medical imaging.

Application

The ISL6455AIRZS2698 has several key features that make it ideal for a wide range of applications. It has an ultra-low dropout voltage of under 100 mV, which makes it suitable for powering sensitive loads, and it is stable at any output current while in dropout mode. Additionally, the device incorporates protection circuits that defend against overvoltage, under voltage, over current, and overtemperature. This helps to ensure reliable operation even in harsh operating conditions.

The device is ideal for portable applications due to its low quiescent current of 40 μA in shutdown mode, which helps to extend battery life. Additionally, its low output voltage accuracy of +/- 0.5% allows it to be used in precision applications such as medical imaging, where highly accurate output voltages are required.

Working Principle

The ISL6455AIRZS2698 is a low dropout (LDO) regulator, which is designed to regulate the output voltage within a close range of the input voltage. The device uses a two-stage topology consisting of a low-impedance voltage monitoring circuit and a P-channel MOSFET in series with the load. The voltage monitoring circuit maintains the output voltage by sensing the difference between the output and reference voltages and controlling the gate voltage of the MOSFET accordingly.

The device also has several protection features that help to protect the device from undesired conditions. The device monitors both the input and output voltages and will shut down the regulator when either one exceeds the specified limits. Additionally, it monitors the output current and will shut down the regulator if the current exceeds the set threshold.

The ISL6455AIRZS2698 is designed for high voltage applications and incorporates several features that help to make it suitable for such applications. Its ultra-low dropout voltage of under 100 mV prevents it from having an excessive load on the input voltage, while its wide input voltage range of 3.2V-17V makes it suitable for high voltage applications.

Conclusion

The ISL6455AIRZS2698 is a special purpose voltage regulator that is designed for high voltage applications. It has a wide input voltage range of 3.2V - 17V and can support output voltages from 0.75V to 16V. Additionally, it is stable at any output current while in dropout mode, and has an ultra-low dropout voltage of under 100 mV to ensure that the input voltage does not suffer from excessive load. The device also features a low quiescent current of 40 μA in shutdown mode and a low output voltage accuracy of +/- 0.5%, making it suitable for precision applications as well. Its protective features and wide operating temperature range make it suitable for both stationary and portable applications.

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