Power supply ICs contributes to improved reliability and functionality

20-07-2021 | ROHM Semiconductor | Semiconductors

ROHM announces the buck DC-DC converter ICs with built-in MOSFET, BD9G500EFJ-LA and BD9F500QUZ, that support high voltages and currents in factory automation equipment, including PLCs/inverters and 5G base stations that manage high power.


The company uses a vertically integrated production system and advanced power processes to develop power supply ICs for the industrial market where reliability and long-term supply are as important as product characteristics. It has recently developed DC-DC converter ICs that support higher voltages and currents.


The devices are non-isolated DC-DC converter ICs developed employing proprietary analog design technology based on high voltage BiCDMOS power processes to give the power supply functionality needed by increasingly complex industrial equipment.


As well as a best-in-class 80V withstand voltage for 48V power supply systems, the BD9G500EFJ-LA with built-in MOSFET offers the largest output current in its class (5A), adding to higher reliability and functionality in charging and 5G base stations that manage large power. At the same time, the BD9F500QUZ with built-in Nano Pulse Control technology achieves a high step-down ratio providing 39V withstand voltage and 5A output current in a compact, low-profile package (3mm x 3mm x 0.4mm). Moreover, the product features overcurrent protection as SEL1/SEL2 pins can be chosen. These features are excellent for 24V power supply systems – allowing support for higher functionality and greater miniaturisation in a broad range of advanced industrial equipment.


Application examples for the BD9G500EFJ-LA include 48V power supply systems covering servers, charging stations, and power amps for 5G base stations requiring 48V class power input; electric bicycles, power tools, and other applications requiring 48V/60V class power input; home appliances such as Vacuum cleaners, washing machines, and other applications with motors exposed to large surge voltages; and 24V power supply systems for the BD9F500QUZ covering surveillance cameras and factory automation equipment such as PLCs and inverters requiring 24V class power input; sower supplies for low voltage control systems, including FPGAs and SoCs installed in various industrial equipment.

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