Adjustable Output 3 / 5-Amp DOSA-SMT DC/DC Converters

Murata Power Solutions
Part Number Information
Part #: Price/Availability:
OKY-T/3 Buy Now
OKY-T/5 Buy Now

The OKY-T/3 and -T/5 series are miniature non-isolated Point-of-Load (POL) DC/DC power converters for embedded applications. The module is fully compatible with Distributed-power Open Standards Alliance (DOSA) industry-standard specifications (

The wide input range is 8.3 to 14 Volts DC. Two maximum output currents are offered, 3 Amps (T/3 models) or 5 Amps (T/5 models). Based on fixed frequency synchronous buck converter switching topology, the high power conversion efficient Point of Load (POL) module features programmable output voltage and On/Off control. These converters also include under voltage lock out (UVLO), output short circuit protection, over-current and over temperature protections.

These units are designed to meet all standard UL/EN/IEC 60950-1 safety and FCC EMI/RFI emissions certifications and RoHS-6 hazardous substance compliance.


  • Non-isolated SMT POL DC/DC power module
  • 8.3-14Vdc input voltage range
  • Programmable output voltage from 0.7525-5.5Vdc
  • 3 Amp (T/3) or 5 Amp (T/5) output current models
  • Drives 1000 μF ceramic capacitive loads
  • High power conversion efficiency 93% at 3.3 Volt
  • Outstanding thermal derating performance
  • Over temperature and over current protection
  • On/Off control
  • UL/EN/IEC 60950-1 safety
  • Industry-standard (DOSA) surface-mount package
  • RoHS-6 hazardous substance compliance


  • Powering CPU’s
  • Datacom/telecom systems
  • Programmable logic voltage systems
  • Programmable mixed voltage systems