BCM48BF040T200A00

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DC-DC converters are often used to regulate voltage levels from one voltage level to another. The BCM48BF040T200A00 is a DC - DC converter especially designed for applications that require high efficiency, low noise, and tight regulation. This device integrates four independent buck regulators with integrated NFETs. It requires only small inductors and capacitors to support the DC-DC buck regulators.

Applications

The BCM48BF040T200A00 includes an integrated power-up sequence, providing a solution for quick system integration. This device’s wide input range from 4.5V to 24V and maximum output voltage of 0.9V makes it ideal for applications such as power over Ethernet (PoE), high-performance computing, battery-powered systems, datacenters, communications, automotive, and cloud computing. It is also suitable for portable devices such as netbooks, tablets, and smartphones.

The BCM48BF040T200A00’s wide input voltage range allows it to be used in a wide range of automotive applications, such as idle stop/start systems, diesel exhaust fluid systems, passenger compartment environments, headlights, seat actuators, and dashboard electronics. It is designed to meet the requirements of high-efficiency, high-bandwidth, and low-noise level applications, especially those that are battery-powered.

The BCM48BF040T200A00 is also optimized for use in communications systems, servers, switches, and routers. It offers high efficiency, wide input, and low noise levels. Its wide output range and low input voltage make it suitable for powering high-performance microprocessors, GPUs, and ASICs in computing devices. In addition, the integrated dynamic voltage scaling feature allows the system to dynamically and quickly adjust its output voltage in order to protect the other components in the system.

Working Principle

The BCM48BF040T200A00 is a synchronous DC-DC buck converter with integrated NFETs. It consists of four independent buck regulators with integrated NFETs (Enhanced Low Dropout Regulators) and an on-die detection of the input voltage. The buck regulator is a type of DC-DC converter that can efficiently convert DC input voltages into DC output voltages. It works by taking an input voltage and then decreasing it to a desired output voltage. The buck regulator uses two key components, an inductor and a capacitor, to regulate the output voltage. The inductor stores energy by creating a magnetic field in response to the input current, while the capacitor provides energy smoothing to the output voltage.

The BCM48BF040T200A00 uses its integrated NFETs to provide an accurate and highly efficient voltage regulation that is capable of providing precise load current sharing across the four buck regulators. The integrated NF ETs also enable high efficiency even under light loads and enable fast transient response. The BCM48BF040T200A00 also supports up to 8A of output current with an output voltage of 0.9V.

The BCM48BF040T200A00 also includes built-in features such as power-on sequence, dynamic voltage scaling, fault protection, and over-temperature protection. By adjusting the output voltage through its built-in power-on sequence, the BCM48BF040T200A00 can ensure the system can seamlessly transition between different loads without disruption. The dynamic voltage scaling feature also helps protect the system by increasing or decreasing the output voltage depending on the load demand. The fault protection features ensure the system remains protected from short circuits, over-current conditions, and over-voltage conditions. Finally, the over-temperature protection feature ensures the system remains protected from thermal overloads.

In summary, the BCM48BF040T200A00 is a DC-DC buck converter designed for applications that require high efficiency, low noise, and tight regulation. Its wide input range from 4.5V to 24V and maximum output voltage of 0.9V make it suitable for automotive, communications systems, servers, switches, and routers. Additionally, the integrated NFETs, power-on sequence, dynamic voltage scaling, fault protection, and over-temperature protection make the BCM48BF040T200A00 an ideal solution for power-over-Ethernet and other battery-powered systems.

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