MORNSUN extends its portfolio of non-isolated switching regulator DC/DC Converter with a new series: K78-1000R3.

As K78-500R3 (500mA output) has enjoyed great popularity from the market, K78-1000R3 (1A output) series is designed to meet wider output power range requirement of customers’ application.

Same as K78-500R3, K78-1000R3 series are in SIP package with high-efficiency up to 96%, which do not need heat sink. The product has pin-outs compatible with LM78XX regulator in a much smaller size, which saves your space. And its operating temperature ranges from -40℃ to 85℃.

The series operate with a wide input voltage range of 6V to 36V and deliver precise output voltages. With standby input current as low as 0.1mA, low ripple, and noise and short-circuit protection, they are suitable for various applications such as industrial control, power grid, instrumentation and mining, etc.

In addition to encapsulated package, open-frame version is also an available option to save your design cost with more competitive price.


  • High efficiency up to 96%
  • No-load input current as low as 0.1mA
  • Operating temperature: -40℃ ~ 85℃
  • Negative output available
  • Short-circuit protection
  • Pin-out compatible with LM78XX regulator
  • Meet UL60950/EN60950 standard