BD9G101G-TR

Overview

The BD9G101G-TR is a non-synchronous buck switching regulator from ROHM Semiconductor, housed in an SSOP-6 package. It supports an input voltage range of 6 V to 42 V and delivers up to 500 mA output current with adjustable output voltages between 1 V and 29.4 V. The device operates at a fixed switching frequency of 1.5 MHz and features a shutdown supply current of 5 uA. It functions within a temperature range of -40°C to +105°C.

Feature Summary

• Integrates a high-voltage power MOSFET capable of handling up to 42 V input.
• Utilizes Nano Pulse Control technology for high step-down ratios and compact design.
• Includes internal phase compensation, over-current protection, and thermal shutdown.

Applications

• Industrial battery management systems
• Portable equipment power supplies
• General-purpose DC-DC conversion

Procurement Notes

Verify the specific suffix 'TR' indicates tape-and-reel packaging when ordering. Confirm that the SSOP-6 package dimensions match the target PCB footprint. Ensure the application does not require automotive qualification, as this component is designated for standard-grade use only.

Selection Notes

Select this regulator for applications requiring wide input voltage ranges up to 42 V with moderate output currents. The integrated MOSFET simplifies design by reducing external component count. Consider the 1.5 MHz frequency for balancing efficiency and passive component size.

Part Context

This component belongs to the BD9G1xx series of high-voltage buck converters. It is part of ROHM's portfolio designed for industrial and portable applications where space constraints and wide input ranges are critical. The series emphasizes integration through built-in power FETs and control logic.

Replacement Considerations

The BD9G102G-LBTR is a related synchronous buck converter in the same family, offering similar input ranges but with different efficiency characteristics due to synchronous rectification.