LT8410EDC#TRPBF

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LT8410EDC#TRPBF is a high efficient synchronous rectification PWM Step Down regulator controller. It incorporates sophisticated fixed frequency peak current mode control scheme and multiple loop compensation that ensures fast transient response and system stability.

This device provides up to 94% peak efficiency and up to 20A output current with ±0.5% voltage accuracy over line, load and temperature variations. LT8410EDC#TRPBF eliminates the need of a transformer and integrates synchronous rectifier, logic level MOSFET & high side and low side drivers into a compact 8-pin package.

The pulse width modulation (PWM) switching frequency is programmable between 100KHz to 1.2MHz and the selectable inputs for skip mode and Burst Mode operation reduce standby power dissipation. Moreover, an adaptive phase shedding technique prolongs the lifetime of the external MOSFET components.

Application Field

LT8410EDC#TRPBF is specially designed for high efficiency and performance voltage regulation applications. It is often used in computer peripherals, such as hard drives, routers, notebooks and industrial control circuits, and more recently for high voltage DC-DC conversion. It can also be used for primary side regulation (PSR) and non-isolated buck-boost regulation in telecom power systems.

Working Principle

LT8410EDC#TRPBF employs a fixed frequency peak current-mode control architecture to regulate an output voltage between 0.6V and 5.5V. As with most PWM switching controllers, it minimizes the amount of power delivered to the load, ensuring that the current drawn from the input source is no more than necessary for conversion.

The integrated high side/low side gate drivers provide logic-level n-channel MOSFET switches with soft-start, skip and thermal shutdown function. The device provides multiple protection features and under voltage lockout (UVLO) with hysteresis. It is capable of providing higher efficiency over traditional linear regulators or other non-synchronous buck regulators by virtue of its synchronous rectification.

LT8410EDC#TRPBF employs low pulse-width modulation (PWM) switching frequency and adaptive phase shedding to reduce switching losses and further increase efficiency. With its wide input voltage range, it enables a single converter to support multiple voltage inputs in industrial, computer and telecom applications.

Conclusion

LT8410EDC#TRPBF is a high efficient synchronous rectification PWM Step Down regulator controller, with wide input voltage range, suitable for computer peripherals, industrial control circuits and telecom power systems. It incorporates sophisticated fixed frequency peak current mode control scheme and multiple loop compensation and can provide up to 94% peak efficiency and up to 20A output current. Moreover, the device provides multiple protection features, such as soft-start, skip mode, thermal shutdown and Under voltage lockout (UVLO) with hysteresis.

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