K78 Series Non-Isolated DC/DC Switching Regulator from Mornsun

MC Digi Key K78 Series Non Isolated Switching Regulator 1 400

February 16, 2022

Mornsun’s K78 series is a high-efficiency switching regulator with the packages of SiP (system in package), SMD, or DFN, and the efficiency is up to 96%. They are designed as a pin-compatible replacement for LM78 linear regulators without any heatsink. K78 series offers excellent performance and advantages – such as high efficiency, wide input voltage range, and highly accurate output voltage. An automated production factory can guarantee quality and reliability at a low cost. Such a perfect solution makes designing a switching regulator circuit redundant. The regulated output K78-R4 series released has undergone a fundamental change in dimension and packaging which is manufactured via the chiplet SiP process, and the appearance of R4 has changed from simple and rough to refinement.


  • •Efficiency up to 96% (no heatsink required)
  • •Wide input voltage range
  • •Output current: 0.5 A to 3 A
  • •Package: SiP, SMD, DFN or open-frame
  • •Ambient temperature range: -40°C to +85°C (R4: -40°C to +105°C)
  • •MTBF up to +8,552°C K hours
  • •RoHS and Reach compliant
  • •3-year warranty



  • •Drop-in replacement for LM78xx
  • •Industrial
  • •IoT
  • •Smart homes
  • •Distributed supply systems
  • •Battery operated systems
  • •Controllers and sensors
  • •Positioning systems
  • •Robotics
  • •Telecommunications
  • •Measurement equipment

MC Digi Key K78 Series Non Isolated Switching Regulator 2 400




To learn more about the K78 Series Non-Isolated DC/DC Switching Regulator, click here


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