ADP150AUJZ-2.8-R7

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The ADP150AUJZ-2.8-R7 is a linear, positive voltage regulator IC from the family of PMIC (Power Management IC) devices. It has been designed for a wide range of applications and is especially suited for higher current and higher voltage output requirements.

The ADP150AUJZ-2.8-R7 is a three-terminal, adjustable and fixed output Voltage regulator designed to provide a regulated output voltage ranging from 1.2 V to 20 V. It can provide up to 1.5 A of output current, making it suitable for many different power applications. The output voltage is adjustable by using two external resistors, making it ideal for optimizing power supply architectures, in particular, when large capacitive loads are detected.

The ADP150AUJZ-2.8-R7 is specified for operation over the temperature range of -40 °C to +85 °C. It is offered in a very small 8-pin SOT-143 package, making it ideal for space-constrained applications. The device is compatible with a wide range of input voltages ranging from 5.5V to 18V.

The ADP150AUJZ-2.8-R7 features integrated protection features such as an over-current protection circuit, a thermal shutdown circuit and an EMI filter, ensuring high voltage and current accuracy over a range of conditions.

The working principle of the ADP150AUJZ-2.8-R7 is based on a standard linear regulator circuit. The chip combines a series of transistors, resistors and diodes to achieve the desired output voltage with a high degree of accuracy. The regulator feedback loop maintains the output within the preset range by actively sensing the delivered voltage and comparing it with a reference voltage.

The primary components of the ADP150AUJZ-2.8-R7 include an eFuse, junction field effect transistor, NMOS pass transistor, Schottky diode, bias current source, a shunt resistor and a comparator. The eFuse is used to adjust the output current by detecting current exceeding the programmed value and turning off the power supply. The junction field effect transistor is used for ESD protection.

The NMOS pass transistor is used to regulate the output voltage. The Schottky diode is used to prevent snapback when the load suddenly increases. The bias current source is used to bias the NMOS pass transistor which then regulates the output voltage. The shunt resistor is used to measure the current and detect any over-current faults.

The comparator is used to compare the feedback voltage with the reference voltage and provide a signal output to control the MOSFET that regulates the output voltage. The power supply is also protected against reverse polarity and high transient voltage spikes by the integrated EMI filter.

The ADP150AUJZ-2.8-R7 linear voltage regulator IC can be employed in numerous power management applications. It is suitable for portable electronics such as tablets, cell phones, and wearable products. It has also been designed for use in computer peripherals, gaming consoles, robotics and automated systems. It can also be used in embedded systems and automotive electronics.

In summary, the ADP150AUJZ-2.8-R7 is an adjustable and fixed voltage linear regulator IC suitable for a wide range of applications. It features excellent accuracy and protection features, and is available in a small 8-pin package. It is specified for operation over a wide temperature range and is compatible with a wide range of input voltages. It is robust and reliable, making it ideal for a variety of power management applications.

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