As the core device for home audio-visual entertainment, the internal power supply system of the streaming media box needs to adapt to the diverse power supply requirements of the processor, memory, storage and various interfaces, while also taking into account compact design and long-term operational reliability. The BD71837AMWV-E2 launched by ROHM, as a system-level PMIC specifically designed for NXP i.MX 8M series processors, has become the preferred solution for the power supply design of streaming media boxes with its integrated architecture and flexible adaptation capabilities, providing core support for the stable operation of the equipment.

　　Accurate adaptation: Match the core power supply requirements of the streaming media box

　　The core component of the streaming media box, the NXP i.MX 8M series processor (single-core/dual-core/quad-core), has precise requirements for power supply voltage and current. The BD71837AMWV-E2 achieves comprehensive adaptation through targeted design. Its integrated 8-channel Buck converter and 7-channel LDO regulator can provide 15 accurate regulated outputs, covering the power supply requirements of all key components such as the processor core, DDR memory, HDMI interface, and storage module. For instance, among them, the 4-channel Buck converter that supports dynamic voltage regulation can flexibly adjust the output voltage according to the changes in processor load, adapting to the power consumption fluctuations of the streaming media box under different working conditions such as video decoding and standby. The 3-channel 3.0A high-current Buck converter can meet the instantaneous power supply requirements during high-definition video processing.

　　Integrated architecture: Facilitates box miniaturization and cost control

　　Streaming media boxes generally pursue a compact body design. The high integration architecture of the BD71837AMWV-E2 effectively solves the problems of numerous components and large space occupation in traditional discrete power supply solutions. Compared with discrete power supply solutions, this chip can reduce the use of 56 peripheral components. Combined with an 8.0mm×8.0mm compact UQFN package, it can reduce the PCB footprint by 45%, reserving more space for the layout of other components inside the box. Meanwhile, it supports low-cost Type 3(non-HDI)PCB design, enabling stable layout without complex circuit processes. Combined with standardized interface design, it can shorten the R&D cycle of power supply systems, reduce overall hardware costs, and meet the large-scale production requirements of streaming media boxes.

　　Multiple protections: Ensure the stability of long-term operation

　　Home audio-visual equipment often needs to operate continuously for a long time, and the stability of the power supply system directly affects the user experience. The BD71837AMWV-E2 is equipped with a complete built-in protection and monitoring mechanism, which can deal with various power supply risks during the operation of the streaming media box. The chip is equipped with multiple functions such as soft start, power rail fault detection, undervoltage protection, overvoltage protection and thermal shutdown, which can effectively prevent equipment failures caused by voltage fluctuations, overloads or excessively high temperatures. Its wide input voltage range (2.7V-5.5V) can be adapted to power adapters of different specifications, and is compatible with various scenarios such as USB power supply and battery power supply, enhancing the environmental adaptability of the device. In addition, the current of the chip in standby mode is only 137μA, and it is as low as 30μA in sleep mode, which can reduce the power consumption of the device when it is idle and minimize energy loss.

　　Flexible control: Adapted to the power management requirements of multiple operating conditions

　　For the multi-operation mode of the streaming media box, the BD71837AMWV-E2 offers a flexible power control solution. Through OTP programmable technology, the power start-up sequence can be preset to ensure that each component is stably powered on in sequence and avoid hardware damage caused by incorrect start-up sequence. The hardware signal interaction function between it and the processor can smoothly switch between standby, running and other states, ensuring the stability during video playback and sleep mode switching. Meanwhile, the chip supports the I2C bus interface, allowing real-time monitoring of the working status of each power rail through software. This facilitates developers in troubleshooting power supply issues and provides convenience for the later maintenance of the streaming media box.

　　BD71837AMWV-E2, through precise power supply adaptation, highly integrated architecture design, comprehensive protection mechanisms and flexible control functions, provides a power solution for streaming media boxes that balances stability, miniaturization and cost-effectiveness, becoming one of the core components supporting the reliable operation of the equipment.

　　If you have any other questions, please feel free to contact Ruihangda Electronic Technology Co., Ltd. at any time. We focus on global supply chain services for high-reliability integrated circuits (FPgas), with rich practical experience and a professional team. We can provide you with a one-stop solution from product selection to technical support. Consultation hotline: 15928527272. Let us safeguard your industrial project!