20W, Triple Output DC/DC Converter (TWR-A Series)

Murata Power Solutions
Part Number Information
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TWR 20W Buy Now

Each unit’s primary +5V output can source any current up to 3 Amps (primary power = 15W); while its auxiliary ±12/15V outputs can source currents up to ±500mA (auxiliary power = 12/15W). Devices deliver any combination of primary plus auxiliary power as long as the total output power does not exceed 20 Watts. This feature enables designers to select a single device to fulfill any number of different requirements.

As members of MPS’s new A-Series, the 20W triples exhibit both low cost and outstanding long-term reliability. Their design combines straightforward circuit topologies, the newest components, proven SMT-on-pcb construction methods, and highly repeatable automatic-assembly techniques. Their superior durability is substantiated by a rigorous in-house qualification program that includes HALT (Highly Accelerated Life Testing).

Each device has a +5V primary output and either ±12V or ±15V auxiliary outputs. “D12A” models achieve fully rated performance with inputs ranging from 9 to 36 Volts. “D48A” models operate over an input range of 18-75 Volts.

These full-featured triples have non-latching output current limiting, input overvoltage shutdown, input reverse-polarity protection, and output overvoltage clamping to protect both the power converters and their loads.


  • Low cost! Highly reliable!
  • Full 20 Watts output power
  • Power “user-allocated” among outputs
  • Proven SMT-on-pcb construction
  • Qual tested; HALT tested; EMC tested
  • Output voltages: +5V/±12V or +5V/±15V
  • Ultra-wide input voltage ranges: 9-36V or 18-75V
  • Designed to meet UL1950/EN60950. BASIC insulation (all 48VIN models)
  • CE mark available (75V input models)
  • Small packages, 2" x 2" x 0.45"
  • Fully isolated, 1500Vdc guaranteed
  • Guaranteed efficiencies to 82%
  • –40 to +100°C operating temperature
  • Modifications and customs for OEM’s