PT4567C

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DC-DC converters serve an important purpose of converting different levels of voltage into the level of voltage that electronic equipment needs to function. PT4567C is a DC-DC converter designed to provide adjustable output voltage for a wide range of applications. It is designed to operate from a wide input voltage range with high reliable output voltage accuracy. This makes it well-suited for telephony, datacom, computing, industrial automation, instrumentation, and automotive applications.

The PT4567C is based on the popular buck converter topology. It is a non-isolated, convergent buck regulator capable of producing a broad range of output voltages. The PT4567C utilizes a control loop which drives an internal switch for the power output. This unique current-mode, voltage-mode control loop provides efficient and reliable output with fast transient response. The PT4567C has a maximum efficiency of up to 92% and a high peak current capability of up to 12A.

The PT4567C is suitable for applications requiring a wide input voltage range. It can operate from a 4.5V to 42V input voltage range. This allows it to be used in automotive and telecommunications applications requiring variable voltages. Its adjustable output voltage makes it an ideal choice for industrial, instrumentation and computer applications where output voltage requirements may change. The PT4567C features over-temperature shutdown and over-current and over-voltage protection, making it an ideal choice for safety and reliability.

The PT4567C works by utilizing a control loop to drive an internal switch. The control loop monitors input voltage, output voltage, and current doing comparison to the set voltage. If the input voltage is too high or low, the control loop signals the internal switch to switch on or off to regulate the output. The switch then adjusts the power to the output transistors, delivering the correct amount of voltage and current to the output. This process continues until the output voltage reaches the set point, at which point the transistors switch off, and the power to the output is interrupted.

The PT4567C also has a unique non-overlap feature that allows it to achieve a fast transient response when changing the output voltage. When the set point is changed, the transistors switch off before the new voltage is reached, allowing the output voltage to ramp up quickly. This helps eliminate undesirable output 50/60 Hz noise and improves the output stability.

In summary, the PT4567C is a highly efficient, reliable DC-DC converter which can deliver a wide range of output voltage levels. It is suitable for applications requiring a wide input voltage range and adjustable output voltage. Its high peak current capability and fast transient response make it an ideal solution for industrial, instrumentation, telecom, and automotive applications.

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