LT3045IMSE-1#PBF

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Introduction of LT3045IMSE-1#PBF

The LT3045IMSE-1#PBF is a low-dropout, low-noise and highly efficient voltage regulator from the family of linear voltage regulators. It is a versatile voltage regulator, suitable for applications requiring 4.00-24V input to precisely regulate output voltages down to 1V. It is designed for low power, low voltage and low noise applications, making it an ideal solution for many applications in both commercial and industrial settings.

Application Fields

The LT3045IMSE-1#PBF is typically suited for applications requiring a single high-current or low-noise output, but also suitable for various other applications such as mobile device power management, data acquisition and communication, automotive systems, battery management, medical equipment and consumer electronics.

The LT3045IMSE-1#PBF is especially useful for powering low voltage and sensitive electronics, such as the microcontrollers, hardware monitoring chips and MCUs used in drones and other outdoor vehicles, as well as those used in more potential hazardous settings such as nuclear and aerospace. It is also ideal for powering portable devices including tablets, PDAs, smartwatches and phones.

Due to its low noise and high efficiency, the LT3045IMSE-1#PBF also finds utility in different audio/video equipment and post-production environments where high-end linear voltage regulators are in use.

Working Principle

The LT3045IMSE-1#PFB’s, linear voltage regulator runs on principle of pulse width modulation (PWM). It features an optimized PWM duty cycle control loop and a feed forward current source to achieve maximum output accuracy and optimal regulation accuracy under varying load conditions. The LT3045IMSE-1#PFB regulates output voltages down to 1V which is useful in applications requiring higher voltage outputs for multiple power levels.

The voltage regulation current path of the LT3045IMSE-1#PFB is independent from the input feed forward current compensation circuitry and includes both fast-on and slow-on diodes to surge current protection and provide offset correction, resulting in a low overall output impedance and stability. Output noise is kept to a minimum thanks to the precision voltage reference built into the regulator.

The LT3045IMSE-1#PFB has excellent transient response characteristics, with a low drop-out voltage and a wide range of output current, it is capable of supplying up to 4A while maintaining excellent regulation. The maximum output current is dependent upon the drop-out voltage and the input voltage.

The LT3045IMSE-1#PFB features an over-current protection circuit that limits the maximum output current to prevent damage caused by over-current conditions. It also features a thermal-shutdown circuit that trips if the internal temperature exceeds a set threshold, providing thermal protection against overheating conditions. These features make the LT3045IMSE-1#PFB a highly reliable voltage regulator for many different applications.

Conclusion

The LT3045IMSE-1#PFB is a low-dropout, low-noise, highly efficient voltage regulator from the family of linear voltage regulators, suitable for applications requiring 4.00-24V input and precisely regulating outputs down to 1V. It finds use in a variety of applications, such as mobile device power management, data acquisition and communication, and many other settings. Its PWM duty cycle control loop and feed forward current source provide excellent output accuracy and regulation accuracy under varying load conditions, while its thermal protection and over-current protection circuits make it a highly reliable voltage regulator.

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