BD4911FM-E2

Special Purpose Regulators Overview

The BD4911FM-E2 is a system power supply integrated circuit manufactured by ROHM Semiconductor. It features very low current consumption and integrates multiple microcontroller outputs, including a reset signal with delay, battery/accessory voltage detection, mute function, and watchdog timer (WDT). The component is designed for embedded systems requiring comprehensive power management and monitoring.

Special Purpose Regulators Feature Summary

• Integrates watchdog timer functionality for system stability
• Includes battery and accessory voltage detection capabilities
• Provides microcontroller reset output with configurable delay

Special Purpose Regulators Applications

• Microcontroller-based embedded systems
• Battery-powered electronic devices
• Accessory interface circuits

Special Purpose Regulators Procurement Notes

Verify the specific suffix E2 against the official datasheet to confirm package type and environmental compliance status. Confirm availability as this component may be subject to discontinuation or limited stock depending on the manufacturer's production schedule. Ensure the selected variant matches the required pinout and thermal specifications for the target application design.

Special Purpose Regulators Selection Notes

Select this component when a single IC solution is needed for power sequencing, monitoring, and protection in low-power applications. Consider the integrated WDT and reset delay features to simplify board layout. Verify that the input voltage range and output current capabilities meet the specific load requirements of the connected microcontroller and peripheral circuits.

Special Purpose Regulators Part Context

This part belongs to the BD49 series of system power supplies from ROHM. These ICs are designed to replace discrete components typically used for power monitoring and reset generation. The BD4911FM-E2 specifically targets applications requiring compact solutions with built-in safety features like watchdog timers and voltage detection.

Special Purpose Regulators Replacement Considerations

Check for direct cross-references such as BA4911-V4 or other BD49 series variants. Verify pin compatibility and functional equivalence before substitution. Consult the manufacturer's obsolescence notices for end-of-life status updates.