ISL21009BFB841Z

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ISL21009BFB841Z is a Voltage Reference that is part of a family of high performance DC/DC and dual-output Voltage References with an Integrated Circuit (IC) for Power Management Integrated Circuit (PMIC). Voltage References are specially designed to maintain a designated voltage level regardless of external conditions and are commonly used in circuits to ensure a reliable input voltage when working with a variety of different power sources. The ISL21009BFB841Z is an ultra low-offset, low-power, low drop-out voltage reference with an extended temperature range of -40° to +125°C.

The ISL21009BFB841Z Voltage Reference is extremely useful for applications in PMICs where high precision voltage reference is necessary. It is a wideband, low noise, low cost device that has a low noise level of 0.008mV (peak-to-peak) over a 20MHz frequency range. The device can be used with a wide variety of digital and analogue power supplies and offers a programmable output voltage for accurate operation. It also features an adjustable current limit up to 1.5mA and a maximum input voltage of 28V.

The ISL21009BFB841Z is a versatile Voltage Reference solution for applications such as load regulation, high-temperature power supply stability, reference circuitry, and energy metering. In load regulation applications, the device can provide an extremely accurate output voltage while varying load. The device can also maintain high-temperature power supply stability by providing a stable voltage even when the temperature of the board or load is varying. In reference circuitry applications, the voltage reference can be referenced to one of three different external voltages to generate a stable output voltage.

The ISL21009BFB841Z also features a power-on reset and an overvoltage protection circuit that helps to protect the device and the rest of the system from catastrophic events such as short circuits and overvoltage conditions. The device can be used with a wide variety of switches and logic devices and is fully qualified for many industrial, automotive and defense applications. The ISL21009BFB841Z is an extremely useful and reliable Voltage Reference for use in PMICs, especially where high precision is required.

The working principle of the ISL21009BFB841Z is based on the concept of a voltage-state-dependent current source. The device uses an op amp to generate a voltage that is proportional to the current in the load. This voltage is then compared to a target voltage and the difference is used to adjust the current in the load. The device provides a programmable 0.1% accurate output voltage and can be used with a wide variety of analog and digital power supplies.

In summary, the ISL21009BFB841Z is a high-performance and high-precision Voltage Reference that is suitable for use in a variety of PMIC applications where high precision voltage reference is needed. It is designed to operate over a wide range of temperatures and can accommodate numerous power supplies. The device has a low noise level and a programmable output voltage that is precisely regulated. Additionally, the on-board protection circuit helps to protect the device and the rest of the system from catastrophic events.

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