Compact Size Non-isolated Switching Regulators K78xxM-1000R3 Series

K78-500R3 series marketed appeal to customers thanks to its compact size but high efficiency. Good news is that MORNSUN expands new non-isolated switching regulator K78M-1000R3 series to further meet the market demand for 1A output.

The new K78M-1000R3 series are full encapsulated in a compact 11.6 x 10.4 x 8 mm (0.457 x 0.409 x 0.315 inch) plastic case, compatible with K78-500R3 series. The series feature an ultra-wide input voltage range of 6-36V, continuous short-circuit protection, low ripple noise (typ.: 25mV), etc., targeting a diverse range of industrial control, grid power, instrumentation, mining and other related industries. The new 1A series can accommodate operating temperature from -40°C to +85°C and offer conversion efficiency up to 96% without heat sink, which is the best alternative to traditional LM78xx linear regulators.

Industrial control, grid power, instrumentation, mining and other related

industries.Logistics robot, etc.


  • High efficiency up to 96%
  • No-load input current as low as 0.3mA
  • Operating temperature range: -40℃ to +85℃
  • Support the negative output
  • Output short circuit protection
  • Pin-out compatible with LM78XX linear regulators
  • Meet IEC60950, UL60950, EN60950 (pending)

Please refer to the technical manual for specific product parameters: K78M-1000R3