VIPER28LDTR Integrated Circuits (ICs)

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PMIC AC 0 DC Converters, Offline Switchers are semiconductor devices with a minimum of two terminals setup to regulate power functions, optimize power conversion efficiency, regulate currents and voltages, and provide different voltage and current levels to different devices. Among PMIC AC 0 DC Converters, Offline Switchers, a popular choice is the VIPER28LDTR high-density and low- noise Switcher. This device offers excellent features such as efficient energy efficiency, current tregbgulation, and a low-profile surface mount soldering point.

The VIPER28LDTR is a high-density, split-rail, synchronous, low-noise switching dc-to-dc voltage converter with high power density and high power conversion efficiency. It is specially designed to provide ultra-low-noise power supply regulation for sensitive applications. It offers an optimal combination of power conversion efficiency and power density with a wide range of output voltage and current ratings, enabling designers to optimize their application performance while maintaining cost effectiveness.

The VIPER28LDTR is suitable for a variety of applications, including system power supply, post converters, telecommunications, servers, and consumer applications. The VIPER28LDTR offers several features, such as adjustable and fixed 3.2V and 0.5V supply outlines, built-in integrated current sense, and internal catch diodes for improved on-the-fly and periodical change over. It also features an adjustable current-limit protection and a low-noise POKER 0 compliant output module.

The VIPER28LDTR is designed to operate over a wide range of temperatures and environmental conditions. The device is equipped with a typical quiescent operating current of only 2.3mA and a low shutdown current of 1.0mA, which makes it well suited for applications with high efficiency and power conservation such as in wireless applications.

The working principle of the VIPER28LDTR is based on the buck-boost topology. The device is composed of two integrated circuits: the power control IC and the power conversion stage. The power control IC monitors the incoming voltage and regulates the current output accordingly. The power conversion stage performs the actual rectification and regulation of the power supply voltage and current.

The input voltage is applied to the IC and the output voltage is regulated through a combination of the IC’s reference voltage and its output voltage regulation. The output voltage is adjusted by the voltage reference circuit, which is designed to protect the power converter from over-voltage by setting an appropriate limit to the maximum output voltage.

The VIPER28LDTR is also equipped with a low-noise regulator, which reduces voltage noise by filtering out high frequency noise from the input voltage. The device also offers integrated protection mechanisms such as over-voltage and over-current protection, and temperature protection. Furthermore, the VIPER28LDTR is capable of automatically reducing its output voltage when the input voltage is too low, increasing its output current when the input voltage is too high, and reducing its output current in under-voltage or overload situations.

The VIPER28LDTR is an all-in-one package with an onboard voltage reference and a POKER 0 compliant output module. This makes the VIPER28LDTR an ideal choice for a variety of applications, such as system power supplies, post-converters, consumer electronics, and telecommunications.

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