ISL21009DFB850Z-TK

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The ISL21009DFB850Z-TK is a precision, low dropout voltage reference. Its voltage output range is 2.5V-6V, making it ideal for voltage adjustments, power supply accuracy and noise reduction requirements in power management integrated circuits (PMICs).

The working principle of the ISL21009DFB850Z-TK is based on the negative-feedback loop, which is a type of electrical control mechanism. This loop consists of an error amplifier that amplifies the voltage difference between the reference and feedback signal and is used to drive a control element (in this case a current steering network) that either raises or lowers the voltage output. This feedback loop ensures the output voltage remains stable and accurate even when the load or operating conditions, such as temperature, change.

The ISL21009DFB850Z-TK is primarily used in Arduino, Raspberry Pi and other microcontroller-based projects. It is suitable for voltage adjustments and signal conditioning in applications such as motor controls, switchmode power supplies and serial communications. It is also useful for correcting inaccuracies in power supply designs, offering precise voltage reference and low noise characteristics that help maintain low power consumption and long-term operations. With its low dropout voltage of 0.2V and excellent line and load regulation, the ISL21009DFB850Z-TK provides a wide range of applications for a variety of voltages.

In terms of performance, the ISL21009DFB850Z-TK provides excellent power supply accuracy and ripple rejection. It offers an accuracy of 0.2% at ± 10 mV between 0.8 V and 6 V, load regulation of 0.02% per 1 mA, and line regulation of 0.1% rms over the whole range. With that, it also offers excellent thermal stability, shock resistance and power supply noise immunity.

Additionally, the ISL21009DFB850Z-TK can operate over a wide temperature range, allowing it to be used in high-temperature applications up to 150°C. It is also designed to operate in a peak current of 2.5 A, allowing it to be used in most power-hungry applications. To help simplify compliance, the device supports RoHS and standard 12-pin packages.

In summary, the ISL21009DFB850Z-TK is a versatile, high-precision voltage reference that offers multiple applications for precision voltage adjustments and noise reduction in PMICs. Its wide operating temperature range, excellent power supply accuracy and ripple rejection capabilities, combined with its low dropout voltage make it an ideal choice for voltage regulation applications.

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