New surface-mount DC-DC regulator combines broad input voltage support, high conversion efficiency, and compact packaging for industrial and embedded power applications.

RECOM has expanded its power conversion portfolio with the ROF-78K-0.5 switching regulator series, a compact non-isolated DC-DC regulator designed to provide cost-effective power conversion without sacrificing performance. The series supports a wide input voltage range of 4.5VDC to 36VDC and delivers up to 0.5A output current, making it suitable for a variety of industrial, automation, communication, and embedded electronic systems.
The ROF-78K-0.5 series is offered with multiple fixed output voltage options, including 3.3V, 5V, 6.5V, 9V, 12V, 15V, and 24VDC. This flexibility enables designers to address different power rail requirements while simplifying circuit implementation and reducing component count.
The key features are:
- Pin-less SMD package with corner half-vias for optical solder-joint inspection
- Remote on/off control input for power management
- Under-voltage lockout protection on input stage
- Short-circuit and over-current protection on output
- Available with fixed outputs from 3.3V to 24V DC
One of the key highlights of the regulator family is its high conversion efficiency, which reaches up to 95%. The high efficiency level helps minimize power losses and heat generation, allowing systems to achieve improved energy utilization and enhanced reliability, particularly in space-constrained designs.
The regulators are engineered for demanding operating environments, supporting temperatures from -40°C to +95°C without derating. They can continue operating at temperatures up to +105°C when used at reduced loads, making them suitable for industrial electronics deployed in harsh conditions.
The devices feature fully regulated outputs to ensure stable voltage delivery under varying load conditions. Combined with integrated protection mechanisms, the regulators help improve overall system robustness and reduce the need for additional external protection circuitry.
Packaged in a compact 12.5mm x 13.5mm x 4.5mm surface-mount format, the ROF-78K-0.5 series is optimized for automated assembly processes and high-density PCB layouts. The compact footprint enables integration into applications where board space is limited, such as industrial controllers, instrumentation equipment, communication modules, and embedded computing platforms.
By combining a wide input range, high efficiency, industrial-grade temperature performance, and compact surface-mount packaging, the ROF-78K-0.5 switching regulator series offers designers a practical power solution for next-generation electronic systems.






