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The BD71847AMWV-E2 is an advanced power management IC (PMIC) designed specifically for use in various mobile and portable applications, including smartphones, tablets, and wearable devices. It integrates multiple power supply outputs, enabling efficient power regulation and management for system-on-chip (SoC) applications. Functions The BD71847AMWV-E2 generally includes the following functions: 1. Multiple Buck Converters: The IC features multiple buck converters (step-down DC-DC converters) that deliver adjustable output voltages, ideal for powering various components of a device. 2. LDO Regulators: It includes low-dropout (LDO) regulators for providing stable and noise-free output voltages for sensitive components. 3. Dynamic Voltage Scaling (DVS): The device supports dynamic voltage scaling to optimize power consumption based on performance requirements. 4. Power Sequencing: Offers programmable power sequencing and monitoring for safe startup and shutdown of connected components. 5. Thermal Protection: Built-in thermal protection mechanisms to prevent overheating under various operating conditions. Applications The BD71847AMWV-E2 is suitable for various applications, such as: 1. Smartphones: For efficient power management and extended battery life. 2. Tablets: Where space is limited, but power management is critical. 3. Wearable Devices: Compact design and low power consumption make it ideal for wearables. 4. IoT Devices: Suited for Internet of Things applications due to its efficient power usage. 5. Portable Consumer Electronics: General applications requiring compact and efficient power management solutions. Alternative Parts If you are looking for alternatives to the BD71847AMWV-E2, consider the following: 1. TI TPS65090: A PMIC offering integrated power management features for mobile devices. 2. MICRON MT6357: A versatile power management IC for mobile applications. 3. Maxim MAX77650: Known for its small size and comprehensive power management features. 4. NXP PCF8523: Typically focused on low-power applications but includes some power management capabilities. Embedded Modules The BD71847AMWV-E2 can be found in various development boards and embedded modules designed to simplify integration into systems. These may include: 1. Evaluation Boards: For testing and benchmarking performance. 2. Development Kits: Kits that include the IC and other components for rapid prototyping. 3. Reference Designs: Provided by manufacturers to help engineers understand implementation. Related Q&A Q1: What are the main benefits of using the BD71847AMWV-E2 in a design? - A1: The BD71847AMWV-E2 offers multiple power outputs, efficient power management, thermal protection, and supports dynamic voltage scaling, making it ideal for portable devices that require efficient and reliable power supply systems. Q2: Can the BD71847AMWV-E2 manage battery charging? - A2: The BD71847AMWV-E2 is primarily a power management IC, focusing on voltage regulation and distribution. However, it can be integrated with separate battery management ICs to effectively manage charging and discharging of batteries in mobile applications. Q3: In what types of applications is the BD71847AMWV-E2 most commonly used? - A3: It is most commonly used in smartphones, tablets, wearable devices, and other portable consumer electronics that require efficient power management and compact design. Q4: Are there evaluation boards available for the BD71847AMWV-E2? - A4: Yes, ROHM offers evaluation boards and resources to facilitate testing and prototyping with the BD71847AMWV-E2, allowing designers to assess its performance before integration into their products. Q5: How does the dynamic voltage scaling feature work in the BD71847AMWV-E2? - A5: Dynamic Voltage Scaling (DVS) allows the IC to adjust the output voltage of the buck converters based on the current performance needs of the system, which helps to reduce power consumption and extend battery life in mobile devices.