BD9B301MUV-LBE2

Overview

The BD9B301MUV-LBE2 is a synchronous single DC/DC converter featuring an integrated MOSFET and controller in a VQFN016V3030 package. It operates with an input voltage range of 2.7 V to 5.5 V and provides an adjustable output voltage from 0.8 V to 4.4 V at a maximum output current of 3 A. The device utilizes constant on-time control suitable for deep-SLM operation, with a switching frequency up to 2 MHz. It includes comprehensive protection features such as over-current, short circuit, thermal shutdown, and under-voltage lockout.

Feature Summary

• Integrates high-side and low-side MOSFETs with the controller in a compact surface-mount package.
• Employs constant on-time control architecture optimized for deep-silicon load management.
• Includes built-in safety mechanisms including over-current protection, short circuit protection, and thermal shutdown.

Applications

• Industrial applications requiring long-term product support
• Portable electronic devices powered by single-cell lithium batteries
• Embedded systems utilizing 3.3 V or 5 V input rails

Procurement Notes

Verify component authenticity through authorized ROHM Semiconductor distributors or certified partners. Confirm the specific suffix LBE2 matches project requirements, as it denotes lead-free and halogen-free compliance. Check for End-of-Life (EOL) status notifications, as this model may be designated for existing customers only rather than new designs. Request official datasheets and quality data sheets prior to finalizing procurement orders.

Selection Notes

Select this component when a high-current buck converter with integrated power stages is required within a small footprint. The wide input voltage range supports direct connection to common battery sources. Ensure the application benefits from the deep-SLM capability for improved light-load efficiency. Verify that the thermal performance of the VQFN package meets the system's heat dissipation requirements under maximum load conditions.

Part Context

This part belongs to the BD9B300MUV series of synchronous buck converters from ROHM Semiconductor. It shares architectural similarities with the BD9B300MUV-E2 but includes specific packaging and compliance variations indicated by the LBE2 suffix. The series is designed for industrial and consumer electronics requiring efficient power conversion in space-constrained environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate the BD9B300MUV-E2 for functional compatibility, noting potential differences in packaging or compliance markings. Consult ROHM Semiconductor directly for approved alternates if this component is discontinued or unavailable.