LT1580IR-2.5#TRPBF

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Voltage regulators are important components in any circuit to maintain a consistent voltage output in spite of variations in the voltage input or load. While many voltage regulators use an adjustable bandgap as the voltage reference, special purpose voltage regulators such as the LT1580IR-2.5#TRPBF are designed for specific uses. While these special voltage regulators are common in the market, understanding their application field and working principle can allow engineers and hobbyists to design smarter circuits.

Application Field

The LT1580IR-2.5#TRPBF was designed to provide precise, adjustable voltage regulation in battery-powered applications. It is especially useful in portable devices that require accurate current regulation and power optimization. Since the device can provide precise voltage regulation even with large battery voltage variations and low output currents, it can help increase the battery life and reduce power consumption in portable devices.

The precise voltage regulation capability of the LT1580IR-2.5#TRPBF also makes it useful for data centers, industrial systems, telecom devices, and other heavy-duty computing applications where precise control over voltage is critical. The device is capable of handling input voltages up to 45V and output currents up to 1.5A. It also features an adjustable voltage accuracy of ±1.25mV, which makes it suitable for high-precision applications.

Working Principle

The LT1580IR-2.5#TRPBF is an adjustable, three-terminal shunt regulator that is specifically designed to be powered with a single Li-Ion battery. The device works by regulating the voltage across the output terminals, even when there are large variations in the input voltage or the load current. It uses the properties of CMOS technology to provide precise and adjustable voltage regulation, even with large variation in the input and output voltages.

At the heart of the device lies an integrated voltage reference, which has an adjustable accuracy of ±1.25mV. The reference is then compared to an external voltage divider, which determines the output voltage of the regulator. When the external voltage is higher than the reference voltage, the regulator will start to reduce the output voltage, until it is equal to the reference voltage again. In this way, the regulator can provide precise and accurate voltage regulation, regardless of the input voltage or load current.

The LT1580IR-2.5#TRPBF can also be programmed to operate in shutdown mode and power-save mode, which can help conserve power and prolong battery life. In shutdown mode, the regulator will shut down if the input voltage drops below a certain level. In power-save mode, the regulator will reduce its output voltage when the load current is low, while still providing the necessary voltage regulation.

Conclusion

The LT1580IR-2.5#TRPBF is a special purpose voltage regulator that is designed for applications such as portable electronic devices and data centers. Its adjustable voltage accuracy of ±1.25mV, high input voltage range, and low output current capabilities make it ideal for applications where precise voltage regulation is required. The regulator also features a power-save and shutdown mode, which can help reduce power consumption and prolong battery life.

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