ADM7170ACPZ-2.5-R7 Integrated Circuits (ICs)

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The ADM7170ACPZ-2.5-R7 Linear Voltage Regulator

The ADM7170ACPZ-2.5-R7 is a linear voltage regulator that is designed for use in a variety of applications, including consumer electronics, computer peripherals, and medical instruments. This device is a three-terminal, adjustable voltage regulator that operates from 1.25 V to 5.5 V. It offers low output noise and low dropout voltage with fast transient response, making it an optimum choice for many applications. Additionally, this voltage regulator is housed in a small SOT-223 package for ease of implementation and has a maximum current rating of 500 mA.

Applications of the ADM7170ACPZ-2.5-R7 voltage regulator include but are not limited to power management in communications equipment, audio devices, HVAC systems, computers and peripherals. It can also be used as a bias supply in industrial instrumentation. Its main function is to provide a stable voltage output while maintaining a constant current load on the regulated load, with minimal energy loss.

Working Principle

The ADM7170ACPZ-2.5-R7 is a three-terminal adjustable voltage regulator that consists of an N-channel MOSFET, a linear regulator, and a reference voltage. The MOSFET is the main power switch, used to supply the voltage according to the desired output voltage. The linear regulator works by adjusting the voltage on the gate of the MOSFET, thus controlling the conduction and providing the desired output voltage. The reference voltage is generated by an internal precision reference, and is used to set the operating point of the linear regulator. By adjusting the voltage on the reference voltage pin, the output voltage of the regulator can be increased or decreased. The device is designed to operate at a wide range of input and output voltages, making it ideal for a variety of applications.

The ADM7170ACPZ-2.5-R7 provides excellent line and load regulation, low output noise, and fast transient response. The device is capable of passing ESD pulses of over 3000 V without damage. It requires very low quiescent current and only draws 175uA at 10mA load. The device is designed to protect against over-voltage, over-current, and reverse current conditions. It has a high PSRR and EMI rejection, making it suitable for noise sensitive applications. The operating temperature range is -40°C to +125°C.

Conclusion

The ADM7170ACPZ-2.5-R7 linear voltage regulator is an excellent choice for many applications due to its features, such as low dropout voltage and low output noise. It is housed in a small package and is capable of operating over a wide range of voltages. Additionally, it is designed to provide excellent line and load regulation, fast transient response, and a high PSRR and EMI rejection. With its wide temperature range, the ADM7170ACPZ-2.5-R7 is ideal for use in a variety of applications, from consumer electronics to HVAC systems.

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