BD9G500EFJ-LA and BD9F500QUZ Power Supply ICs

ROHM's BD9G500EFJ-LA and BD9F500QUZ buck DC/DC converter ICs with built-in MOSFET supports high-voltages and currents in factory automation equipment such as PLCs/inverters, and 5G base stations that handle high power.

Recent years have seen evolving markets of battery-driven applications and advanced industrial equipment such as 5G base stations and factory automation systems equipped with functions utilizing AI and IoT. This demands power supply ICs that are not only compact and operate at high efficiency, but also deliver large currents for operating multiple functions and can withstand high voltages to prevent damage from sudden surges (i.e. due to lighting).

ROHM, which leverages a vertically-integrated production system along with advanced power processes to develop power supply ICs for the industrial market where reliability and long-term supply are just as important as product characteristics, has developed DC/DC converter ICs that support higher-voltages and currents. The BD9G500EFJ-LA and BD9F500QUZ are non-isolated DC/DC converter ICs developed by utilizing proprietary analog design technology based on high-voltage BiCDMOS power processes to provide the power supply functionality required by increasingly sophisticated industrial equipment.

In addition to a best-in-class 80 V withstand voltage for 48 V power supply systems, the BD9G500EFJ-LA with built-in MOSFET delivers the largest output current in its class (5 A), contributing to higher reliability and functionality in charging and 5G base stations that handle large power. At the same time, the BD9F500QUZ with built-in Nano Pulse Control™ technology achieves a high step-down ratio and provides 39 V withstand voltage and 5 A output current in a compact, low-profile package (3.0 mm × 3.0 mm × 0.4 mm). Moreover, the product features an overcurrent protection as SEL1/SEL2 pins can be selected. These features are ideal for 24 V power supply systems, enabling support for higher functionality and greater miniaturization in a wide range.