Murata Power Solutions OKI-78SR 1.5A DC/DC Converters

Murata Power Solutions Okami™ OKI-78SR Series 1.5A DC/DC Converters are fixed output SIP converters fabricated on a 0.41" x 0.65" (10.4mm x 16.5mm) module. These non-isolated switching regulators (SR) DC/DC power converters are for embedded applications. The series offers both tight regulation and high efficiency directly at the power usage site and is a direct plug-in replacement for TO-220 package 78xx series linear regulators. Typically, no extra outside components are required. Murata Okami OKI-78SR Series 1.5A DC/DC Converters feature an ultra-wide 7VDC to 36VDC input range. Two nominal output voltages are offered (3.3VDC and 5VDC), each with 1.5A maximum output. Based on a fixed-frequency buck switching topology, the high efficiency means very low heat and little electrical noise, requiring no external components.

Protection features include input undervoltage and short circuit protection, overcurrent and over temperature shut down. The OKI-78SR modules are designed to meet UL/EN/IEC 60950-1, 2nd Edition safety approvals. RoHS-6 (no lead) hazardous material compliance is specified as standard.

Features

  • Ultra-wide 7 to 36VDC input range
  • Fixed Outputs of 3.3 or 5VDC up to 1.5A
  • Vertical or horizontal SIP-mount, small footprint package
  • No heat sink direct replacement for 3-terminal 78xx-series linear regulators
  • High efficiency with no external components
  • Short-circuit protection
  • Outstanding thermal derating performance
  • UL/EN/IEC 60950-1, 2nd Edition safety approvals

Connection Diagram

Murata Power Solutions OKI-78SR 1.5A DC/DC Converters
Publicado: 2010-07-16 | Atualizado: 2025-12-11