BD9E101FJ-LBGE2

Overview

The BD9E101FJ-LBGE2 is a synchronous buck DC/DC converter manufactured by ROHM Semiconductor, designed for industrial applications with guaranteed long-term supply. It integrates a power MOSFET and controller in an SOP-J8 package. The device operates with an input voltage range of 7V to 36V and provides a maximum output current of 1.0A. It features a switching frequency setting up to 1MHz, enabling the use of small inductors. The IC supports adjustable output voltages from 1V to 25.2V and functions within a junction temperature range of -40°C to 150°C.

Feature Summary

• Synchronous single-channel DC/DC converter topology with integrated low on-resistance power MOSFET
• Current mode control architecture providing high-speed transient response performance
• Wide input voltage capability suitable for generating low output voltages such as 5.0V
• Integrated protection mechanisms including over-current, short circuit, thermal shutdown, and under-voltage lockout

Applications

• Industrial equipment power supplies
• Systems requiring compact design through high-frequency operation
• Applications demanding stable long-term component availability

Procurement Notes

Verify the specific suffix LBGE2 against official ROHM documentation to confirm packaging details and RoHS compliance status. Confirm that the product status remains active or available for purchase, as some variants may have different lifecycle statuses. Ensure the ordering part number matches the required tape and reel quantity specifications before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring a wide input voltage range up to 36V and an output current of 1A. The 1MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Consider the exposed pad HTSOP-J8 package for thermal management requirements in industrial environments where high junction temperatures are expected.

Part Context

This part belongs to the BD9E series of integrated MOSFET DC-DC buck converters from ROHM. These devices utilize constant on-time control methods to achieve fast transient responses and low light-load consumption. The series is targeted at industrial markets, emphasizing durability and long-term supply stability for critical infrastructure and automation applications.

Replacement Considerations

BD9E100FJ-LBGE2 is documented as a similar specification replacement option within the same family.