A power solution capable of simultaneously handling analog and fully digital power has been developed, raising expectations that low power consumption can be achieved even in fully digital power systems that require high power.

ROHM announced on the 23rd that it has launched the LogiCoA™ power solution, which enables the realization of functions equivalent to full digital control power supplies at the level of analog control power supplies with low power consumption and low cost for industrial and consumer devices in the low to medium power range (30W to 1kW class).

LogiCoA™ is a brand of design concept that fuses digital elements to maximize the performance of analog circuits.

The LogiCoA™ power solution is the industry's first 'analog-digital fusion control' power supply that combines a digital control section centered around the LogiCoA™ microcontroller with analog circuits composed of power devices such as silicon MOSFETs.

In the case of a fully digitally controlled power supply, functions handled by digital controllers such as high-speed CPUs or DSPs can be processed by low-bit microcontrollers, enabling high-performance capabilities that are difficult to realize with analog power supplies to be achieved with low power consumption and low cost.

Since this solution can store various setting values such as current and voltage in the LogiCoA™ microcontroller, the main according to the power circuitIt is possible to correct for performance deviations of variable parts.

Accordingly, unlike analog control power supplies, there is no need to consider margins, contributing to the miniaturization and high reliability of the power supply.

In addition, since operation log data can be recorded in the non-volatile memory inside the microcontroller, it is also ideal for power supplies of industrial equipment that require log recording as a backup in the event of a problem.

ROHM’s official website has unveiled the evaluation reference design ‘REF66009’, which allows users to experience LogiCoA™ power solutions with a non-isolated buck converter circuit.

This page provides various tools necessary for evaluation, such as circuit diagrams, PCB layouts, component lists, sample software, and support materials. Evaluation on an actual device is possible by using the reference board 'LogiCoA001-EVK-001' provided by ROHM.

The LogiCoA™ microcontrollers embedded in the LogiCoA™ power solution are scheduled to begin mass production and sample provision starting in June 2024.

Moving forward, we intend to contribute to the realization of a sustainable society by promoting the product development of LogiCoA™ microcontrollers to support various power topologies, thereby achieving low power consumption and miniaturization of the power supply unit, which accounts for the majority of power loss in applications.