BD46395G-TR

Overview

The BD46395G-TR is a synchronous step-down DC/DC converter manufactured by Rohm Semiconductor. It integrates high-side and low-side N-channel MOSFETs to achieve high efficiency in compact designs. The device operates with an input voltage range of 2.7V to 5.5V and provides a programmable output voltage from 0.6V to 3.6V. It supports a maximum output current of 3A with a switching frequency selectable between 400kHz and 1.2MHz. Key features include integrated soft-start, overcurrent protection, and thermal shutdown for robust operation.

Feature Summary

• Integrated synchronous rectification using internal N-channel MOSFETs for enhanced power conversion efficiency.
• Programmable output voltage via external resistor divider allowing flexible system design configurations.
• Built-in protection mechanisms including overcurrent limiting and thermal shutdown to ensure operational safety.

Applications

• Portable electronic devices requiring efficient power management
• Embedded systems with low-voltage digital logic requirements
• Battery-powered consumer electronics

Procurement Notes

Verify the exact suffix and tape-and-reel specifications against the manufacturer's latest datasheet before ordering. Confirm that the package type matches your PCB footprint requirements. Ensure compatibility with your target input voltage range and load current demands. Check for any specific environmental or reliability certifications required for your application.

Selection Notes

Select this component when a compact solution with high efficiency is needed for low-voltage applications. Consider the trade-off between switching frequency and external component size. Evaluate the thermal performance under maximum load conditions. Ensure the control loop stability meets your transient response requirements.

Part Context

This part belongs to Rohm's family of synchronous buck converters designed for portable electronics. It complements other models in the series offering different current ratings or input voltage ranges. The G-TR suffix indicates the specific packaging and reel configuration used for automated assembly processes.

Replacement Considerations

Check for direct pin-compatible alternatives within the same product family. Verify if newer revisions offer improved efficiency or extended temperature ranges. Ensure substitute parts maintain the same switching frequency options and protection features.