LT8311IFE#PBF

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The LT8311IFE#PBF is an integrated power supply controller featuring multiple protections and offers the most effective power supply solution for the system engineers. It is a single-stage synchronous buck controller that combines an advanced synchronous switch controller and a high-efficiency power FET. This regulator uses an internal field-effect transistor (FET) to provide up to 15 A of continuous output current.

Application Field

The LT8311IFE#PBF is a single-stage synchronous buck controller with many integrated protection functions. It is suitable for a wide variety of applications such as point-of-load (POL), battery charging, DC to DC converters, and DC motors. This device can be used for primary-side or secondary-side low-voltage start, output voltage programmable, high frequency (>1MHz) approach, fast transient response in line or load transient and over-current protection.

The LT8311IFE#PBF is designed to provide a high level of flexibility, enabling the LT8311IFE#PBF to be used in a wide range of applications. It can provide cost-effective solutions to systems requiring multiple protection functions, as it is more cost-effective than incorporating each of these protection functions in a separate chip.

Working Principle

The LT8311IFE#PBF works by first sensing the input voltage, then regulating the output voltage to a predetermined level. This regulation is achieved by the primary switch, which toggles the primary switch current. The output voltage is regulated at the desired level by the secondary switch, which in turn toggles the secondary switch current. The primary switch is driven from an oscillator, and the frequency of the oscillator is adjustable.

The LT8311IFE#PBF also provides several other features, such as over-voltage, over-current, and under-voltage protection. The over-voltage protection prevents the output from reaching the maximum level. The over-current protection prevents the output from exceeding the rated current level. The under-voltage protection prevents the output from falling below the minimum level. All of these protections are enabled and disabled by the user, allowing the user to choose the desired level of protection.

In addition, the LT8311IFE#PBF also supports soft-start and frequency synchronization. The soft-start feature allows the output to ramp up gradually when power is applied. This feature helps reduce in-rush current, which helps the load to operate more efficiently. The frequency synchronization feature prevents multiple clocks from disrupting each other, which may cause disruptions in the system\'s performance. The LT8311IFE#PBF also supports integrated fault protection and current balancing functions.

Conclusion

The LT8311IFE#PBF is an integrated power supply controller featuring multiple protections and offers the most effective power supply solution for the system engineers. It provides cost-effective solutions to systems requiring multiple protection functions, as it is more cost-effective than incorporating each of these protection functions in a separate chip. The LT8311IFE#PBF is suitable for a wide variety of applications such as point-of-load (POL), battery charging, DC to DC converters, and DC motors, enabling the user to choose the desired level of protection.

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