PT6447C

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DC-DC converters are electrical components that are used to transfer power from one DC source to a different DC source. PT6447C is a celebrated DC-DC converter. It is a reliable and power efficient device designed to fulfill the requirements of consumer electronics and industrial applications. The converters are mainly designed with the intent to provide a low cost, reliable and efficient solution for various applications, such as power supply, switching power supply, home appliance, broadcasting and other related applications.

The PT6447C DC-DC converter is a 4-channel, 1.2A single-phase synchronous step-down converter. It is equipped with low-noise integrated power MOSFETs and high efficiency loop circuit, and is powered by a wide input voltage range of 5.1V to 25V, without a separate bias winding, or bias transformer. It has a low quiescent current of 0.5mA and low shutdown current of 0.2mA. With its synchronous rectification, the PT6447C achieves high efficiency, up to 96.7%, at the full load.

This converter is able to provide an output voltage of 0.6V to 1.8V adjustable voltage, with a maximum output current of 1.2A. The PT6447C can deliver an output power of up to 7.2W, and it provides adjustable output voltage and current protection including over-voltage protection, over-current protection, and short-circuit protection to ensure system stability and reliability. The output ripple noise of PT6447C is low, and it has an output voltage accuracy of up to 1%.

The typical applications of PT6447C include audio amplifiers, portable multimedia devices, digital TV systems, industrial control systems, LED driver applications, automotive electronics, etc. Additionally, this device can also be used in switching power supply applications where high efficiency, low noise, and low power consumption are important criteria.

The working principle of PT6447C is based on the principle of pulse width modulation (PWM). In this device, the PWM logic provides a rectangular pulse waveform. This signal is used to modulate the current so that it follows the input voltage and provides an output power that is equivalent to the input power. The device includes a low-side driver MOSFET and an external Schottky diode providing an output current to the load. The voltage potential of the output voltage is adjusted through a resistor divider. The output voltage and current of the PT6447C are controlled by the feedback voltage, and the input voltage, respectively.

The PT6447C is a highly capable and reliable DC-DC converter that aims to provide a compact and efficient solution for a wide range of applications. Its high output current capability and high efficiency make it suitable for most of the demanding consumer electronics applications. The device is equipped with a low quiescent current, low noise, and high output ripple noise tolerance, making it suitable for noise sensitive applications.

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