PTMA402050 10W, 36V to 75V Input, 1500V Isolation, DC-DC Converter |

PTMA402050 (NRND) 10W, 36V to 75V Input, 1500V Isolation, DC-DC Converter



The PTMA40XX is a series of 10-W rated isolated dc/dc converters, designed to operate from a standard -48-V telecom central office supply. Housed in an industry standard 1.1 in × 1.0 in (27.94 mm × 24.38 mm) package, this series of isolated modules is set to one of the common intermediate bus voltages of 3.3 V, 5 V, or 12 V.

The PTMA40XX series includes many features expected of high-performance dc/dc converter modules. Operational features include an input undervoltage lockout (UVLO) and a dual-logic output enable control or synchronization option. Overcurrent protection ensures survival against load faults.

Typical applications include distributed power architectures in both telecom and computing environments, power over ethernet, and particularly complex digital systems requiring multiple power supply rails.


  • Input Voltage: 36 V to 75 V
  • 10-W Total Output Power
  • Output Voltages: 3.3 V, 5 V, and 12 V
  • Output Voltage Trim ±10%
  • Up To 87% Efficiency
  • Overcurrent Protection
  • Input Undervoltage Lockout
  • Output Overvoltage Protection
  • Positive or Negative Logic Enable Control Option
  • Synchronization Option
  • Space-Saving, Industry Standard Footprint (1.1 in x 1.0 in) / (27.94 mm × 24.38 mm)
  • Industry Standard Pinout
  • Surface Mount Package
  • 1500-Vdc Isolation
  • Agency Approvals: UL/IEC/CSA-C22.2 60950-1
    • Intermediate Bus Architectures
    • Telecom, High-End Computing Platforms
    • Power Over Ethernet Applications
    • Multi-Rail Power Systems