Miniature DC-DC regulators deliver high efficiency in a compact footprint

October 29, 2026

Achieving up to 99% efficiency in a compact 3D package, 3D Power Packaging® (3DPP) power modules from RECOM Power enable engineers to design highly efficient compact power systems.

RECOM has introduced several families of DC-DC converters built on their 3DPP technology, surface-mount-compatible power modules that outperform discrete PCB designs to allow easy and reliable integration. 3DPP innovations include:

  • Integrated magnetics
  • Control ICs embedded in substrate
  • Flip-chip IC mounting
  • QFN, SSOP, LGA, and gull-wing terminations

 

Power modules using 3DPP include options such as the RPL and RPZ integrated inductor non-isolated power modules, as well as LGA configuration variants such as the RPM series. RPM switching regulators can achieve up to 99% efficiency with adjustable output up to 28V DC and a wide operating temperature from -40°C to 107°C at full load.

 

For loads requiring voltages down to 0.8V such as SoCs, RECOM supplies the RPX and RPY series with MHz-range switching frequency in package sizes down to just 3mm x 5mm x 1.6mm.

 

Additional options are available for a wide variety of different applications such as the RPH-3.0 and R1SX, allowing engineers to choose the best converter for their use case, from high-power industrial power supplies to low-power IoT devices.

Features

  • Integrated protection features
  • AEC-Q100 qualification on selected models
  • Control functions:
    • Power good
    • Remote sensing
    • On/off
  • Variants with wettable flanks

Applications

  • Point-of-load power supplies
  • Medical devices
  • Distributed power architectures
  • Imaging systems
  • Battery-powered equipment
  • Telecommunications systems

Evaluation platform for RPL-3.0 Buck Regulator Module

Part Number: RPL-3.0-EVM-1

The RPL-3.0-EVM-1 generates a constant output voltage selectable from 1.8V, 3.3V, or 5V from a DC input in the range of 4 – 18V. It has a maximum continuous output current of 3 A.

All the functions of the RPL-3.0 such as output voltage selection, control, power good, and output sense can be readily evaluated. Also the behavior in overload or over-temperature can be evaluated easily before it is designed in.

The evaluation board also contains the filter components to meet EMC Class A levels. Alternate component positions are included to allow experimentation to optimize the EMC performance depending on operating conditions and budget.

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