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Home  >  Products  >  COTS DC-DC Converters  >  RO-MIL-2213

RO-MIL-2213 100W DC-DC

28V Input
3.3/5V 20A Output

RO-MIL-2213 is a low voltage 100W DC-DC converter designed specifically for avionic & defence applications. This high efficiency converter also features enable and remote sense.

  • Variant
  • Input
  • Regulated Output
  • RO-MIL-2213A
  • 28V
  • 3.3V 20A
  • RO-MIL-2213B
  • 28V
  • 5V 20A
  • Dimensions
  • 76.3x38.2x10.2mm
  • Weight
  • 60g Max
  • Operating Temperature
  • -55°C to +85°C

RO-MIL-2213 is a compact, high current, high efficiency, single-rail DC-DC converter. Operating from a 28V input it has a wide input voltage range of 14.5 to 40V and operates over the military temperature range without derating. The unit is unconditionally stable and does not require any external components for correct operation.


The compact size and high efficiency are achieved by applying innovative techniques proven in our many avionic programmes. Efficiency has been optimised to remain high down across the full range of loading, rather than only at full power.


Energy for the output is provided by an isolated high frequency PWM push-pull converter. Short-circuit and overvoltage protection is included as well as remote voltage sensing and a remote disable facility. Although they do not have to be connected for the unit to function, the remote sense terminals allow the output voltage to be regulated directly at the load. This compensates for the losses of the output power leads and provides optimum regulation.


It is optionally avaliable with an input filter to meet MIL-STD-461 & DO-160.

  • Parameter
  • RO-MIL-2213A
  • RO-MIL-2213B
  • Input
  • Nominal Voltage
  • 28VDC
  • 28VDC
  • Voltage Range
  • 14.5-40V
  • 12-40V
  • Surge Rating
  • 50V or 80V*
  • 50V or 80V*
  • Output
  • Voltage
  • 3.3V
  • 5V
  • Current
  • 20A
  • 20A
  • Typical Efficiency
  • 78%
  • 81%
  • Environmental
  • Vibration
  • 10g
  • 10g
  • Altitude
  • 40,000ft
  • 40,000ft
  • MTBF
  • >90,000Hrs AIF
  • >90,000Hrs AIF

* Standard input surge rating is 50V for 100mS. An 80V surge option is also avaliable.


Optional features:

  • extended input range
  • alternative input setting
  • custom set output voltage and/or current limit
  • alternative unit finish e.g. black anodised 

Please contact us to discuss your requirment.


As with all Roband products, the RO-MIL series is fully manufactured onsite in the UK.