PT4521N

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DC-DC converters are electronic circuits that convert a high voltage DC source to a lower voltage DC output. They are very popular and are used in a variety of applications, ranging from small electronic equipment to large industrial systems. The PT4521N is a low-noise, wide-range DC-DC converter. It is based on a high-efficiency synchronous buck conversion architecture. It has a wide input voltage range and offers a low-noise, efficient, and compact solution for a variety of DC-DC power applications.

The PT4521N is a single-phase DC-DC converter with an input voltage range of 6.5 to 18 V. It supports continuous output currents up to 8 A with an adjustable output voltage range of 0.8 to 6 V. The output voltage is adjustable by an external resistor, which allows for flexibility in the design. The PT4521N has a high-efficiency duty cycle up to 95% and can provide output current up to 105% of the rated load without incurring damage.

The PT4521N is a highly integrated, low-noise DC-DC converter designed for direct connection to the DC inputs of microcontrollers, DIMMs, and systems-on-chip. It provides an efficient, flexible power solution for many applications, including communications, computing, consumer electronics, automotive, and industrial applications. The built-in input voltage surge protection and soft-start features protect the system from overvoltage, input current surges, and quick start-up conditions.

The PT4521N features a wide-range switching frequency of 100 KHz to 1 MHz. This design allows the converter to efficiently convert high input voltage and to operate at high switching frequency for betterE/MI performance and ultra-low noise operation. The PT4521N provides a low-noise voltage regulation with a minimum peak-to-peak ripple of less than 0.2 V. At the same time, the device eliminates the need for external compensation components, such as capacitors, resulting in a much simpler and cost-effective design.

The PT4521N operates in a synchronous buck regulation topology, meaning it switches power between the input source and the output load. During the buck cycle, the switch is closed and the input current Iin flows to the inductor and the output capacitor through the switch. The current Iin stored in the inductor transfers to the output capacitor and provides the output voltage Vout. The output voltage is regulated by regulating the duty cycle of the switch. A smaller duty cycle means a lower output voltage and vice versa. The PT4521N provides an adjustable duty cycle control to allow for flexible output voltage regulation.

The PT4521N is a highly efficient DC-DC converter designed for a variety of applications. It offers a wide input voltage range, an adjustable output voltage range, and a low-noise voltage regulation. The low-noise design is ideal for microcontroller-based systems and systems-on-chip. The adjustable duty cycle control allows for flexible output voltage regulation. The high-efficiency architecture ensures long life and reliable operation in a variety of industrial and consumer applications.

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