LTC3718EG#PBF

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The LTC3718EG#PBF is a part of a special purpose PMIC – Voltage Regulator family. It is a high-efficiency digital-controlled half-bridge switching regulator specifically designed to exploit the high integration level of digital controllers without sacrificing performance or efficiency while requiring minimal external components.

The LTC3718EG#PBF provides high-performance current-mode control with the superior transient response of voltage mode control. This regulator utilizes a switching frequency of 1MHz, allowing for small external components, and is capable of delivering outputs up to 28V at a maximum current of 10A.

The LTC3718EG#PBF also features a wide range of operating modes, including: Average Current-Mode Control, Burst Mode Operation, and very fine-tuned pulsed current control. These features make it ideal for applications requiring tight control and high efficiency, such as DC/DC converters, HVAC controls, renewable energy, and motor control.

The LTC3718EG#PBF has a wide input voltage range (1.7V to 28V), and an integrated GreenFET switching FET which is capable of delivering up to 1MHz of switching frequency. In addition, this PMIC has an adjustable output voltage and over-current protection.

The working principle of the LTC3718EG#PBF is based on current-mode control. It operates with a 15V to 28V supply voltage and can deliver up to 10A of maximum output current. In this operating mode, the switching frequency is 1MHz and the output voltage can be adjusted by turning a voltage trim adjuster.

The voltage regulation circuit of the LTC3718EG#PBF employs an advanced Pulse Width Modulation (PWM) control technique. This technique incorporates a feed-forward circuit to improve the line and load regulation by providing fast transient response. It also contains an over-current protection circuit which is triggered by an output voltage drop or an over current in the power stage.

To ensure high efficiency and accurate control, the LTC3718EG#PBF features a low quiescent current, high frequency 1MHz operation, and a temperature-controlled switching frequency. The current-mode control ensures excellent load and line regulation for wide output current ranges.

The LTC3718EG#PBF also features a low-dropout linear regulator with a 0.5% accuracy. This regulator can be used for controlling a stable voltage for startup operations and can provide an overload protection for the power supply. To further enhance efficiency, the regulator utilizes low power consumption.

In short, the LTC3718EG#PBF is a robust, efficient and cost-effective solution for a wide range of applications. Its flexible design and efficient operation make it suitable for DC/DC converters, HVAC controls, renewable energy and motor control, as well as other high-power PMIC applications.

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