AVE450D Series

450 Watt Isolated DC-DC Converters for RF Applications

The AVE450D series isolated DC-DC converter is a dual output model designed specifically for RF power amplifiers in small-cell, low power and remote radio head (RRH) telecommunications applications. It provides a 28 Vdc output that can deliver up to 12 amps and a 5.5 Vdc output with a 20 amp capability.

The converter accepts a wide range input of 36 to 75 Vdc. Rated at 450 watts, it can operate over an ambient temperature range of -40 to 85˚C, continuing to deliver full power up to a baseplate temperature of 100˚C. The 28 V output can be trimmed from 14 to 33 Vdc, while the 5.5 V output offers a 4.5 to 12Vdc trim range, to meet a broad range of application needs. The converter has no minimum load requirement, uses fixed-frequency switching and meets the conducted emissions requirements of FCC Class B and EN55022 Class B with an external filter.

Based on a high power density design that incorporates a thermal baseplate, AVE450D series converters have an industry standard half-brick footprint and pin-out, with an installed height of just 0.5 inch (12.7 mm). They have a thermally optimized layout that is suitable for either conduction or forced air cooling and depending on the model, offer full load conversion efficiencies of up to 92%. Standard features include input undervoltage lockout, remote On/Off and differential remote sense, as well as comprehensive protection against overtemperature and output overcurrent or overvoltage conditions.

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  • Total Max Power:
    450 W
  • Total Max Current:
    16 A
  • Input Voltage:
    36 V to 75 V
  • Output Voltage:
    4.5 V to 33 V
  • Outputs:
    Dual
  • Size (L x W x H):
    2.300" x 2.400" x 0.500"
  • Warranty:
    2 years
  • Operating Temperature:
    -40°C to +85°C

Electrical Specifications

  • Input
  • Output
  • Logic Control
  • Isolation
  • Other
  • Input : 36-75Vdc
  • Output voltage : 28V and 5V
  • Output Power: 450W total
  • Enable : Positive or negative enable option
  • Isolation: 1500Vdc
  • Other : Dual 28V and 5V trimable O/P
  • Delivering up to 16A output current for 28V or 12A for 28V and 20A for 5.5V
  • Ultra-high efficiency 92% typ. with both full load
  • Wide input range: 36V ~ 75V
  • Excellent thermal performance
  • No minimum load requirement
  • Fixed frequency operation
  • RoHS 6 compliant
  • Remote control function (negative or positive logic optional)
  • Remote output sense
  • Trim function: 14V ~ 33V for 28V output and 4.5V~12V for 5.5V output
  • Input under voltage lockout
  • Output over current protection
  • Output over voltage protection
  • Over temperature protection
  • Power good for 28V output

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