BD9130EFJ-E2

Overview

The BD9130EFJ-E2 is a synchronous step-down switching regulator manufactured by ROHM Semiconductor, designed for efficient power conversion in compact electronic systems. It integrates high-side and low-side power MOSFETs within an HTSOP-J8 package to minimize external component count. The device operates with an input voltage range of 2.7 V to 5.5 V and provides a single adjustable output from 1 V to 2.5 V at up to 2 A. It features a fixed switching frequency of 1 MHz, enabling the use of small inductors and capacitors. The IC supports operation across an extended temperature range from -25°C to +105°C.

Feature Summary

• Integrates internal power MOSFETs to reduce external component requirements and board space.
• Utilizes current-mode control architecture for stable regulation and simplified compensation.
• Supports wide input voltage ranges suitable for single-cell lithium-ion battery applications.

Applications

• Portable consumer electronics powered by single-cell lithium batteries
• Industrial control systems requiring compact DC-DC conversion
• Embedded computing modules with strict size constraints

Procurement Notes

Verify the NRND (Not Recommended for New Designs) status before initiating any new product development projects. Confirm that existing inventory levels meet long-term supply requirements, as this component may be phased out in favor of newer alternatives within the BD9130 series or other ROHM portfolios. Ensure compatibility with current design specifications prior to procurement.

Selection Notes

Select this component when a compact, single-output buck converter is required for low-voltage, high-current applications. It is suitable for designs where input voltages remain between 2.7 V and 5.5 V. Consider the HTSOP-J8 package for thermal management and space efficiency. Evaluate alternative models if higher output currents or wider input voltage ranges are necessary for the specific application.

Part Context

This part belongs to the BD9130 series of step-down regulators from ROHM Semiconductor. The series focuses on integrating power switches to simplify circuit design and improve power density. The BD9130EFJ-E2 variant specifically utilizes the HTSOP-J8 package, distinguishing it from other pinouts like the NV version. It serves as a solution for portable devices needing efficient voltage regulation from lithium sources.

Replacement Considerations

Check for direct substitutes within the BD9130 family, such as the BD9130NV-E2, which offers similar electrical characteristics but in an SON-8 package. Verify pinout compatibility and thermal performance differences before swapping packages. Consult ROHM documentation for updated lifecycle status and recommended replacement parts if the BD9130EFJ-E2 is discontinued.