BD49101ARFS-ME2

Power Management - Specialized Overview

The BD49101ARFS-ME2 is a multi-channel power supply IC designed for automotive audio applications. It integrates seven channels, comprising two DC-DC converters (one with an integrated controller) and five regulators. The device operates within an input voltage range of 5.5V to 25V and supports output voltages from 800mV to 25V. It features a low-power standby regulator for MCU power supply and includes cable impedance compensation. The IC is qualified under AEC-Q100 standards, ensuring reliability in automotive environments.

Power Management - Specialized Feature Summary

• Integrates seven power supply channels including dual DC-DC converters and five regulators for comprehensive system power management.
• Includes a dedicated low-power standby regulator optimized for microcontroller power supply requirements.
• Features built-in protection circuits such as over-voltage input protection, over-current protection, and thermal shutdown.
• Supports I²C interface control with selectable oscillator frequencies and external clock synchronization capabilities.

Power Management - Specialized Applications

• Car audio systems
• Automotive infotainment units
• Vehicle electronic control modules

Power Management - Specialized Procurement Notes

Verify the specific suffix ME2 against the official ROHM datasheet to confirm package type and qualification status. Ensure compatibility with AEC-Q100 automotive grade requirements for your target application. Confirm lead times and minimum order quantities directly with authorized distributors or the manufacturer, as these parameters are subject to change and are not included in technical specifications.

Power Management - Specialized Selection Notes

Select this component for complex automotive audio systems requiring multiple regulated rails from a single high-voltage source. The integrated DC-DC controllers reduce external component count compared to discrete solutions. Consider the HTSSOP-A44R package size for PCB layout constraints. Verify that the required output currents and voltage ranges align with the specific channel capabilities defined in the electrical characteristics table.

Power Management - Specialized Part Context

This part belongs to ROHM's specialized PMIC family for automotive use. It is designed to replace discrete power supply solutions in car audio head units and amplifiers. The integration of multiple channels simplifies the bill of materials and reduces board space. It is distinct from standard LDO or buck converter ICs by offering a complete power tree solution.

Power Management - Specialized Replacement Considerations

BD49101ARFS-M