PT4123C

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DC-DC Converters are essential computing components that serve to convert electricity from one voltage to another. Specifically, the PT4123C is a high performance single chip DC-DC converter that provides a stable output voltage and low dropout voltage. In this article, we will explore the application field and working principle of the PT4123C.

The PT4123C is specifically designed to work for a wide range of voltage and power levels ranging from as low as 0.7V and 1W up to 6V and 4A. This makes it well-suited for board level applications in PCs, notebooks and tablets. The PT4123C is also capable of allowing multiple phase synchronization for increased power delivery and higher efficiency so it can be used in a variety of power dense applications, including automotive and industrial.

The PT4123C features a high accuracy reference voltage circuit with programmable current limit and thermal shutdown. This makes the PT4123C particularly suitable for low current applications such as clock generators, FLASH memories and powering voltage regulators for dynamic loads. Additionally, it features a ripple rejection of up to 50dB and output noise of fewer than 1mV, making it well-suited for powering sensitive analog circuitry.

The PT4123C uses a synchronous rectifier circuit to convert the input voltage. This amplifies the input current and enables highly efficient conversion with a high efficiency rate of up to 97%. The PT4123C also features a switch frequency of up to 1MHz, allowing it to achieve high levels of efficiency in even the smallest of packages.

The PT4123C also features a comprehensive suite of protection features. These include input under voltage, output voltage, and over-temperature protection. Additionally, the PT4123C has a live current qualification system to prevent noises from the host device from impacting the operational characteristics of the device.

Overall, the PT4123C is a high performance single chip DC-DC converter that is capable of providing stable output voltage and low dropout voltage for a wide range of voltage and power levels. The device is suitable for board level applications and features a synchronous rectifier circuit for highly efficient conversion. Additionally, the device has numerous protection features, including input under voltage, output voltage, and over-temperature protection. With its features, the PT4123C makes an excellent choice for many power dense applications in automotive, industrial, and consumer applications.

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