LT3667HUDD#PBF

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The LT3667HUDD#PBF integrated circuit is a high-efficiency, high-power, non-synchronous buck regulator. It is suitable for off-line and DC-to-DC applications that require very high output currents and low input voltages. The output voltage is adjustable in a range from 0.225 V to 8 V,and it provides a maximum current of 8 A. The integrated circuit is also capable of automatically sequencing two different output voltages,making it suitable for powering multiple loads.

This IC belongs to the family of PMIC - Voltage Regulators - Linear + Switching. It is designed to provide a low-cost,high efficiency and low noise regulated power solution for applications such as DSPs, FPGAs, microprocessors and audio amplifiers. This is an ideal choice for high-power applications where efficiency, thermal management and noise are of the utmost concern.

The Working Principle of LT3667HUDD#PBF: It is a non-synchronous buck converter which uses pulse width modulation (PWM), and current-mode control to regulate the input voltage to a stable output voltage. The buck converter has two main parts: the power stage and the control stage. The control stage monitors the output voltage and adjusts the duty cycle of the PWM signal sent to the power stage accordingly. The power stage is responsible for regulating the input voltage and converting it to a regulated output voltage.

In the power stage, an N-MOS transistor is used to switch the input voltage provided to the regulator. The output voltage is then regulated using an external P-MOS transistor which is driven by the PWM signal from the control stage. As the duty cycle of the PWM signal is adjusted, the output voltage is regulated accordingly. The P-MOS transistor acts as a current mirror, for further improved performance.

The LT3667HUDD#PBF integrated circuit also incorporates several protection features, providing protection against overvoltage, overcurrent and thermal overload. It also has a wide input voltage range of 4.5V to 18V, allowing it to be used with a wide range of power supplies.

The LT3667HUDD#PBF integrated circuit is widely used in applications such as DC-to-DC converters, solar energy controllers, personal electronics, embedded systems, gaming consoles and many other applications which require a reliable, efficient and low noise regulated power supply.

The LT3667HUDD#PBF offers a wide range of features and efficient, high-power regulator solution while maintaining a low price, making it an ideal choice for many applications.

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