LT3694EUFD#PBF

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The LT3694EUFD#PBF belongs to the PMIC Voltage Regulators Linear + Switching Classification, which refers to semiconductor power packages that incorporate power switching and linear voltage regulation in a single device. In this article, we will discuss the application field and working principle of the LT3694EUFD#PBF.

The LT3694EUFD#PBF is a triple-channel high-current load switching regulator with integrated N-Channel MOSFETs, designed for high-efficiency applications such as telecom, industrial, and automotive. It features over-voltage protection, input to output voltage range of 1.8 V to 36V, and an integrated logic-controlled 10000 V ESD protection structure. The LT3694EUFD#PBF can be used in applications where output current requirements exceeds 7A, and the total power of the output can reach a regulated value of up to 360W.

The LT3694EUFD#PBF can be used in a wide range of applications, including but not limited to high-power voltage converters and isolated DC-to-DC/DC-to-ground converters, motor control, LED drivers, and audio amplifiers. The LT3694EUFD#PBF is rated for operation at temperature ranges between -40°C to +125°C, making it suitable for automotive and industrial applications.

Working Principle

The LT3694EUFD#PBF features an innovative voltage feedback controller that requires only two resistors for output voltage setting, with an overall accuracy of 99% or better. The LT3694EUFD#PBF also includes a drive-control logic which synchronizes the output regulation cycle with the controllable current source, and features a control input for current slew-rate control. Additional features of the LT3694EUFD#PBF are an over-voltage protection that limits the output voltage to a safe level, and a power-on reset delay.

The LT3694EUFD#PBF provides a selectable two-level foldback over-current protection at the current-sense pin, allowing the device to be used in multiple applications with varying load current requirements. The LT3694EUFD#PBF also employs cycle-by-cycle current limiting, with a nominal current limit of 10A. Additionally, the device offers a low-power sleep mode, allowing the device to reduce power consumption when the load currents are low.

Conclusion

The LT3694EUFD#PBF belongs to the PMIC Voltage Regulators Linear + Switching Classification. The device is designed for high-efficiency applications such as telecom, industrial, and automotive and offers a wide range of features, including logic-controlled 10000 V ESD protection, two-level foldback over-current protection, and low-power sleep mode. It also has an input to output voltage range of 1.8 V to 36V and an overall accuracy of better than 99%.

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