LTC3862EFE#PBF

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LTC3862EFE#PBF is a voltage regulator series of DC-DC switching controllers, particularly applied to hot-swap and power-supply sequencing applications. It is a monolithic step-down switching regulator integrated with many protection and control functions, providing a low component count solution with a minimum number of external components which can be integrated into a variety of power management systems.

The LTC3862EFE#PBF series of voltage regulators are specifically designed for operating in a hot-swap environment. A hot-swap controller is needed to enable the safe and smooth insertion of boards or modules into a live system. Hot-swap controllers will allow use in a live system without causing electrical overstress or damage to the components, other boards or the system itself. The LTC3862EFE#PBF series provides a simple and practical solution to these hot-swap needs. The on-chip power MOSFET and charge pump provide a complete and robust solution in a small space.

The LTC3862EFE#PBF series of regulators are also well-suited to power-supply sequencing applications, and in particular, can enable a reliable power-up and power-down of multiple supplies. Power sequencing, also known as power sequencing, allows for the gradual rise of multiple power supplies upon power up, and the orderly shutdown of supplies when powering down the system. This can eliminate stress to the system components, and significantly improve the life and reliability of the system.

The LTC3862EFE#PBF features multi-mode operation with very low output Ripple and transient response, making it suitable for many high-performance low noise applications, such as powering DSPs, FPGAs and µP cores. It also has an integrated under-voltage protection circuit for over temperature and over current protection, which improves system reliability and safety.

The LTC3862EFE#PBF operates in three different modes: the fixed frequency current mode (FF-CM); the variable frequency current mode (VF-CM); and the burst mode (BM) allowing for lower power dissipation and low noise operation in light load conditions. In addition, the LTC3862EFE#PBF includes a programmable soft-start, adjustable frequency and synchronizable circuitry, making it a very versatile and flexible power management solution.

The LTC3862EFE#PBF features a low input voltage range from to 4. 5V to 22V with over voltage protection (OVP) up to 29V and adjustable operating frequencies between 100kHz to 1MHz. It also has a low shutdown current of less than 200nA for system level power savings.

In summary, the LTC3862EFE#PBF series of voltage regulators are a robust, versatile and highly efficient DC-DC switching controllers designed for hot-swap and power-supply sequencing applications. Its integrated features make it a low component count and cost-effective solution in a range of power management systems.

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