BD9E100FJ-LBGE2

Overview

The BD9E100FJ-LBGE2 is a synchronous buck DC/DC converter manufactured by Rohm Semiconductor. It features an input voltage range of 7V to 36V and delivers a maximum output current of 1A. The device supports adjustable output voltages from 1V to 25.2V with a switching frequency up to 1MHz. It operates within a junction temperature range of -40°C to 150°C and is housed in an HTSOP-J8 package.

Feature Summary

• Integrated low on-resistance power MOSFETs for high efficiency
• Current mode control architecture enabling fast transient response
• Built-in protection mechanisms including over-current, short circuit, thermal shutdown, and under-voltage lockout
• Designed for long-term stable supply in industrial applications

Applications

• Industrial equipment power systems
• PLC (Programmable Logic Controller) power supplies
• Inverter drive circuits
• General-purpose low voltage generation from higher bus voltages

Procurement Notes

Verify the specific suffix LBGE2 against the manufacturer's latest documentation to confirm pinout and electrical specifications. Check for any pending Product Change Notices (PCN) that may update mechanical or material specifications without altering electrical performance. Ensure compatibility with RoHS3 standards if required by your assembly process.

Selection Notes

Select this component when a wide input voltage range up to 36V is required alongside a compact solution. The integrated MOSFET design reduces external component count compared to discrete solutions. Consider the 1MHz switching frequency for minimizing passive component size while maintaining adequate transient response for dynamic loads.

Part Context

This part belongs to Rohm's BD9E series of synchronous buck converters designed for industrial markets. The series emphasizes long-term availability and robustness. The BD9E100 variant specifically targets 1A load requirements, distinguishing it from higher current models like the BD9E200 or lower current variants within the same family.

Replacement Considerations

Consult official substitution lists for direct replacements. Generic equivalents may differ in thermal characteristics or control loop stability.