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Linear voltage regulators are one of the most widely used voltage regulator type in the power management (PMIC) industry. They form an extremely important part of any electronic design and thus, have a great importance in the overall system design. The ADP222ACPZ-1533-R7 is an extremely reliable and efficient linear voltage regulator manufactured by Alpha and Delta Power Solutions. It offers precision regulation and low noise output. It is designed to provide the highest level of performance, integrity and reliability while offer some the best output voltage accuracy level available.

Features & Benefits

The ADP222ACPZ-1533-R7 is a low dropout, two-terminal adjustable linear voltage regulator. It features an output voltage range of 10V to 15V, a maximum output current of 2A and a maximum dropout voltage of 0.15 V. It also has excellent output voltage accuracy with a ±1.0% voltage tolerance and a high power supply rejection ratio of up to 50 dB. The device also features a minimum temperature coefficient of - 4.2% of full-scale per °C to ensure accuracy over temperature.

The device is highly efficient and requires very low quiescent current, and it is also highly stable at light load with fast response to load transients. Furthermore, the device has additional features such as protection against overvoltage, current limit and thermal protection. The device also offers low noise operation and excellent line and load regulation. The device is fully RoHS compliant and also offers excellent ESD protection.

Applications & Usage

The ADP222ACPZ-1533-R7 linear voltage regulator offers a wide range of potential applications. It can be used in portable, consumer and industrial electronics such as smartphones and tablets, consumer electronics, laptop and desktop computers, LED lighting systems, medical and industrial equipment, automotive application and various telecommunications. Other potential applications include battery chargers, power-supply units, motor control systems, AC/DC adapters and more.

Working Principle

The working principle of the ADP222ACPZ-1533-R7 linear voltage regulator is relatively simple. The device consists of two transistors (an N-channel and a P-channel MOSFET), a voltage divider and a control circuitry. The device works on the principle of comparing the reference voltage (output voltage) to the feedback voltage, which is the voltage obtained from the voltage divider. When these two voltages are different, it causes the N-MOSFET to conduct, causing the output voltage to be regulated.

The control circuitry monitors the feedback voltage and enables or disables the N-MOSFET depending on the difference between the reference voltage and the feedback voltage. This process is repeated at a very high frequency and allows the device to maintain the constant output voltage. This also helps to provide excellent line and load regulation, since the device will continuously adjust its output voltage to compensate for any changes in the input and load conditions.

Conclusion

The ADP222ACPZ-1533-R7 linear voltage regulator offered by Alpha and Delta Power Solutions is one of the most reliable and efficient regulators in its class. It offers a wide range of advantages, such as a high power supply rejection ratio, low noise operation, excellent line and load regulation, excellent output voltage accuracy and low quiescent current. The device can be used in a variety of applications, such as portable, consumer and industrial electronics, automotive applications, telecommunications and more. The working principle of the device is quite simple, yet highly effective in regulating the output voltage.

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