BD95841MUV-E2

Overview

The BD95841MUV-E2 is a single-channel synchronous buck DC/DC converter manufactured by ROHM Semiconductor. It operates with an input voltage range of 7.5 V to 15 V and delivers a maximum output current of 4 A. The adjustable output voltage spans from 800 mV to 5.5 V. Integrated N-MOSFETs enable efficient space-saving design. The device utilizes H3 Reg™ on-time fixed control mode for fast transient response without phase compensation components. Switching frequency is configurable between 500 kHz and 800 kHz, with a typical quiescent current of 15 uA. It functions within an operating temperature range of -20°C to +100°C in a VQFNV3030-EP-16 package.

Feature Summary

• Employs H3 Reg™ on-time fixed control mode to achieve high-speed transient response characteristics without requiring external phase compensation components.
• Integrates low on-resistance N-MOSFETs for the switching elements, enabling a compact footprint and high-efficiency synchronous rectification.
• Includes comprehensive protection circuits featuring cycle-by-cycle over-current protection, thermal shutdown, under-voltage lock-out, and short-circuit protection with timing latch.

Applications

• Power supplies for digital AV equipment
• System power distribution in consumer electronics
• Point-of-load regulation for embedded systems

Procurement Notes

Verify the specific suffix E2 confirms RoHS compliance and lead-free status as per the manufacturer's datasheet. Confirm the VQFNV3030-EP-16 package dimensions match your PCB layout requirements. Ensure the application does not involve automotive use, as this standard-grade component is explicitly not recommended for such environments. Cross-reference the ordering code with authorized distributors to ensure authenticity.

Selection Notes

Select this component when a single output channel is required with an input voltage strictly between 7.5 V and 15 V. It is suitable for designs needing up to 4 A continuous current with adjustable output voltages down to 800 mV. Choose this IC if the design benefits from fixed on-time control to simplify compensation network design. Consider the thermal performance in the VQFNV3030-EP-16 package for high-current applications.

Part Context

This part belongs to the BD95841MUV series of synchronous buck converters from ROHM. It is designed for general-purpose power management in portable and stationary electronic devices. The E2 suffix typically denotes environmental compliance variations within the product line. It serves as a solution for applications requiring efficient step-down conversion with robust protection features.

Replacement Considerations

Check for direct pin-compatible alternatives within the ROHM BD958xx series that may offer different current ratings or input voltage ranges. Verify that any substitute maintains the same VQFNV3030-EP-16 package and supports the required 4 A output capability. Ensure the replacement also utilizes H3 Reg™ or equivalent control topology if fast transient response is critical.