LT3032EDE-5#PBF

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Linear voltage regulators are electronic circuit components with the primary task of regulating an output voltage. LT3032EDE-5#PBF is one such linear voltage regulator that offers great performance, reliability and flexibility. This article will update the reader with the application field and working principle of this powerful voltage regulator.

Application Field of LT3032EDE-5#PBF Linear Voltage Regulator

LT3032EDE-5#PBF linear voltage regulator is specifically designed for high current applications, such as supplying multiple ASICs, FPGAs, and DSPs with up to 8A of current. It is capable of providing adjustable voltage output in a wide range of 2.7V to 15V with a high level of accuracy. It also provides adjustable current limit up to 8A of continuous load current and 10A of limiting current. The thermal cutoff switch prevents any further current when the junction temperature reaches 120°C, thus protecting the system against thermal damage. Other features include enable, UVLO, and polarity protection.

Working Principle of LT3032EDE-5#PBF Linear Voltage Regulator

The LT3032EDE-5#PBF voltage regulator is a 3-terminal device with input, output, and ground of the power supply. The internal circuitry of the regulator contains a high-side power MOSFET, an NMOS pass element and a loop compensation circuit. It also has a reference termination and feedback to provide exact voltage regulation with minimal overshoot and undershoot.

The regulator draws power from the external supply, passes it through a regulator, and regulates the output voltage that can be either more or less than the input. The reference termination is connected to the output terminal, which closes the loop of the regulation, and the feedback loop produces a voltage that is compared to a fixed voltage reference to determine the Q point of the MOSFET.

When the device is enabled, the MOSFET turns on, allowing current to flow from the input to the output, and the voltage is regulated by controlling the duty-cycle of the MOSFET. The current limit circuit limits the maximum output current, preventing any over-current surges. The internal thermal protection circuit monitors the junction temperature and shuts off the device if it exceeds the safe operating temperature.

Conclusion

The LT3032EDE-5#PBF linear voltage regulator is a great choice among linear voltage regulators for high current applications, such as supplying multiple ASICs, FPGAs, and DSPs. Its application field encompasses a wide range of supply voltages and adjustable current limits up to 8A of continuous load current and 10A of limiting current. It also has numerous features, such as enable, UVLO, and polarity protection. Its working principle is based on a high-side power MOSFET, an NMOS pass element, a loop compensation circuit, a reference termination and feedback for exact voltage regulation, and an internal thermal protection circuit.

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