LT3480IMSE#TRPBF

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LT3480IMSE#TRPBF is a DC-DC synchronous step-down converter designed to deliver up to 20A of output current. The integral MOSFETs allow operation at a frequency up to 1MHz with extremely wide input voltage range from 3.2V to 36V. It offers performance, features and simplified usability to advanced power system designs. The device is often used as a PMIC (power management integrated circuit) voltage regulator and DC-DC switching regulator.

The application field for LT3480IMSE#TRPBF includes distributed power systems, server power supplies, telecom power supplies, portable systems, medical systems, and automotive applications. Its high output current and wide input voltage range make it the ideal choice for demanding power needs in harsh environments. The integrated MOSFETs also allow operation at high frequencies which are advantageous in applications like switching displays, CPUs, and FPGAs.

The working principle of LT3480IMSE#TRPBF is based on peak current mode control, which uses a generalized type of topology. It works by using an internal voltage detect signal in combination with a constant oscillator frequency to regulate the output current. The internal oscillator frequency is typically set from 200 kHz to 1 MHz, depending on the desired application. The peak current control loop helps to maintain output voltage accuracy over wide temperature and line voltage variations. It also provides fast transient response and excellent line and load regulation to reduce the ripple and noise of the output voltage.

The key features of LT3480IMSE#TRPBF for PMIC voltage regulators and DC-DC switching regulators include an adjustable soft-start to limit input current surge, a short-circuit protection with auto-recovery, an output disconnect capability to reduce power losses, and an over-voltage protection. Other features include a phase-lockable oscillator with a spread spectrum feature to reduce system noise and an adjustable output voltage range from 0.8V to 5.5V. The device is also available in a small, 3mm x 3mm footprint, making it suitable for a range of applications.

In conclusion, LT3480IMSE#TRPBF is a highly capable device and is suitable for a range of PMIC voltage regulator and DC-DC switching regulator applications. Its high output current and wide input voltage range make it the ideal choice for high power needs in harsh environment applications. Its other features, such as adjustable soft-start, short-circuit protection, and over-voltage protection, also make it well-suited for these applications.

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