IR3084UMPBF

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Power management integrated circuits, often referred to as PMICs, are used to design and manage the power distribution of electronic systems. Among many other PMICs, IR3084UMPBF has a special application and provides a wide range of features. This article discusses IR3084UMPBF\'s application field and working principle.

What is IR3084UMPBF?

IR3084UMPBF is a PMIC designed by International Rectifier Corporation (now known as Infineon Technologies) for high current synchronic buck applications. It offers a wide range of features, such as high frequency, low ripple current, low ripple voltage, fast transient response and overvoltage protection. It offers excellent efficiency and outstanding thermal performance. The package of IR3084UMPBF is a 36-lead exposed pad power SO-8.

Application Field

The IR3084UMPBF is ideally suited for applications such as advanced graphics cards, CPUs, FPGAs, networking, storage systems, and high performance computing systems. It is used in power supply design where the current is higher than 20 Amps and the output voltage needs to be regulated to a certain level. It is also used to provide power to high performance graphics cards, which often require high current and quick transient response. Additionally, high frequency switching in the range of 100kHz to 1.3MHz can be used with the IR3084UMPBF.

Working Principle

The IR3084UMPBF is a synchronous buck converter. It consists of two stages. First, it converts the input voltage into a high frequency voltage, which is referred to as the switching cycle; this process is called Pulse Width Modulation (PWM). The pulse width modulation is then used to quickly and accurately control the output voltage to a desired level. The second stage is the rectification and filtering of the high frequency voltage, which reduces the ripple and provides the final output voltage.

The IR3084UMPBF operates in a continuous conduction mode (CCM), which means that the inductor current remains constant at all times. In CCM mode, the input voltage is compared with a reference voltage. If the input voltage is greater than the reference voltage, the PWM signal is generated; if the input voltage is lower than the reference voltage, the PWM signal is turned off. This leads to a very fast and accurate regulation of the output voltage.

Conclusion

In conclusion, the IR3084UMPBF is a high power synchronic buck PMIC, ideally suited for applications such as advanced graphics cards, CPUs, FPGAs, networking, storage systems and high performance computing systems. It is used in power supply design of current higher than 20 Amps and the operation frequency can be set in the range of 100kHz to 1.3MHz. Its internal PWM circuitry ensures a fast, accurate and consistent regulation of output voltage and excellent efficiency.

The specific data is subject to PDF, and the above content is for reference