Parameters(target value)



AC/DC Converter ICs (124)

ROHM's large current external FET controller type switching regulators are compatible with virtually all switching power supply applications due to their wide input voltage range, multi-operation capability (step-up/negative voltage/step-down), and flexible operating frequency.

Parameters (Target Value)

ROHM AC/DC Designer

VIN   Min  
Output  VOUT     V    
IOUT     A    
Switching Regulators (Isolated type)

Switching Regulators (Isolated type) (6)

BD7F series is an optocoupler-less Isolated Flyback Converter. An optocoupler or the tertiary winding feedback circuit which was needed to obtain a stable output voltage isolated by a transformer in the conventional application becomes unnecessary, thus, the number of parts is reduced drastically, producing a small-sized and high-reliability application isolated type power supply. Furthermore, a highly by the use of the Original Adapted-Type ON-Time Control Technology, it makes the external phase compensation parts become unnecessary, therefore a highly efficient isolated type power supply application can easily be produced.

Switching Regulators

Switching Regulators (190)

ROHM's switching regulator series (DC/DC converter) are available with or without integrated FET (boost/buck/boost-buck) and from single-channel to multi-channel system power supply configurations for broad compatibility. ROHM offers industry-leading DC/DC converters and evaluation boards that allow customers to develop and differentiate their power designs. Support videos, application notes, and commentary are also available to provide assistance at every stage of development.
Do you need help finding the right power solution for your design? We provide a clear explanation for selecting the the ideal DC/DC converter from our broad lineup. We offer solutions for industrial equipment, cellular base stations, and automotive applications.

Switching Regulators (Power Management IC for System)

Switching Regulators (Power Management IC for System) (39)

ROHM's switching regulator series (DC/DC converter) are available with or without integrated FET (boost/buck/boost-buck) and from single-channel to multi-channel system power supply configurations for broad compatibility.

Gate Drivers

Gate Drivers (20)

ROHM’s proprietary microfabrication technology was utilized to develop on-chip transformer processes for compact, isolated gate drivers.

Voltage Detectors (Reset ICs)

Voltage Detectors (Reset ICs)

ROHM voltage detector IC series are reset IC with highly accurate detection voltage of ±1% , low current consumption, small thin packages and wide range of detection voltage. They can be used for every kind of application equipped with controllers such as micro controllers, CPU or DSP. In the ROHM voltage detector IC series, both CMOS and open drain output are available, therefore output of reset signal can be selected for connected power supply. Default SSOP packages are pin-compatible and function-compatible, so they can be used as replacement for existing IC. Besides, a lineup of very small and thin package makes compact implementation near micro controllers possible. All lineups are Pb-free, and meet RoHS.

Power Management Switch ICs

Power Management Switch ICs (96)

ROHM power management switch ICs integrate a low ON-resistance MOSFET and multiple protection circuits on a single chip, resulting in low loss, high efficiency, and stable, reliable operation - all on a single chip. Ideal for power management in USB memory sticks, expansion modules for PCs, and other digital devices.


IPDs (27)

The IPD (intelligent power device) series of the ROHM is a universal switch of the automotive grade that integrated low on resistance MOSFET and various protection circuit into one chip. For overheat, an overcurrent, overvoltage and a load short circuit, provide the protection of the higher level. Including resistant capacity-related inducible load installed in the engine room, a compartment, be available in product machine applications.

LED Drivers

LED Drivers (76)

ROHM offers a broad lineup of LED drivers, such as AC/DC, DC/AC, and constant current types optimized for a variety of applications, including lighting, backlighting, camera flash, displays, and automotive systems.

Wireless Charging ICs

Wireless charging technology is becoming increasingly popular in the mobile device sector by eliminating power cords, providing the ability to send power and even data across multiple interfaces.
ROHM leads the industry in product development, including reference designs with integrated wireless charge control IC that have already obtained Qi certification. ROHM offers a broad portfolio of wireless charging products for wireless power solutions. For more detailed information, access to following page and login to MyROHM to view support materials such as datasheets, diagrams, user manuals, and more.

  • Wireless Power Receiver ICs
  • Wireless Power Transmitter ICs

13.56MHz Wireless charging LSI (LAPIS)

LAPIS Semiconductor's 13.56 MHz wireless charging LSIs, "ML7630" and "ML7361", provide a wireless charging system using the world's smallest chip solution including a downsized antenna by the 13.56 MHz power transfer.
They are a suitable for achieving a wireless charging solution of small devices such as wearables devices up to 0.2W power.