ISL9000IRFDZ

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The ISL9000IRFDZ is a linear voltage regulator. It is specifically designed for large, fixed-frequency applications such as mobile and consumer electronics. It provides very effective power conversion and is capable of supplying up to 5A of load current with exceptionally low voltage drop. Additionally, it has several features that make it ideal for use in power management applications.

Application Field

The ISL9000IRFDZ is well suited for a wide range of applications, from basic power management to high current lighting and industrial applications. It operates from an input voltage range of 5-30V and provides an output voltage of up to 25V. This makes it ideal for powering a wide variety of components, such as CPUs and GPUs, as well as providing system level power or charging batteries.

The linear regulator can be configured to operate in a continuous or load sharing modes. This allows it to be used in multiple-card systems, or in heavily loaded applications. At full load, the ISL9000IRFDZ operates with a very low dropout voltage - typically under 200mV.

Working Principle

The ISL9000IRFDZ works by providing a linear voltage output from an input voltage by implementing a voltage feedback loop. This voltage feedback loop is known as a linear regulator, and is an essential component for providing a safe and stable voltage for a circuit. The linear regulator works by sensing any change in the output voltage and then automatically adjusts the output voltage to maintain its set voltage level.

The linear regulator compares the actual output voltage to a reference voltage, and via a series of transistors and controlling resistors, sets the output voltage automatically. During normal operation, the difference between the input voltage and the output voltage is limited to the internal dropout voltage of the part. This dropout voltage is typically considerably lower than the control voltage, with dropouts below 200mV being common.

Conclusion

The ISL9000IRFDZ is a versatile and highly capable linear voltage regulator. It allows for a wide range of input and output voltages, as well as continuous and load sharing modes, making it ideal for a variety of applications. Additionally, its low dropout voltage allows it to operate efficiently even under heavy load conditions. It is an excellent solution for power management applications across several different markets.

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