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1.5 amp, 3.3Vdc out, Non-Isolated DC/DC Converter, 7- 36 Vin, SIP, Vertical Mount


    Explanation of Product Status

    Under Development Products under development
    Please contact us for product availability and sample lead-time.
    In Production Product is in mass production.
    to be discontinued Not recommended for new designs. We are evaluating the schedule for the discontinuing of production of this item. Contact Murata or refer to the website for details of product supply and possible alternative product information.
    Discontinued product Production of this product has stopped. Contact Murata for inventory availability and possible alternative products.
    Recommended product This product is particularly recommended among our products currently in production.
    New product It's new item.


Technical Information

Input Voltage Range (V) 7 to 36
Design Origin Murata Power Solutions
Dimensions (inch) 0.41 x 0.65 x 0.30
Dimensions (mm) 10.4 x 16.5 x 7.62
Efficiency (%) 85.5
Mounting Type Surface Mount
Package Style SIP
Output Current (A) 1.5
Input Current (mA) 5/480
Operating Temp. Range (C) -40 to 85
Quality UL/IEC 60950-1, 2nd Edition safety approvals EN 60950-1, 2nd Edition (pending)
Ripple Noise (mV pk-pk) 40
RoHS 6 Yes
Series Headline Fixed Output 1.5 Amp SIP DC/DC Converters
Series Description Fabricated on a 0.41 by 0.65 inch (10.4 by 16.5 mm) Single Inline Package (SIP) module, the OKI- 78SR series are non-isolated switching regulator (SR) DC/DC power converters for embedded applications. The fi xed single output converters offer both tight regulation and high effi ciency directly at the power usage site and are a direct plug-in replacement for TO-220 package 78xx series linear regulators. Typically, no extra outside components are required. Two nominal output voltages are offered (3.3 and 5 VDC), each with 1.5 Amp maximum output. Based on fi xed-frequency buck switching topology, the high effi ciency means very low heat and little electrical noise, requiring no external components. The ultra wide input range is 7 to 36 Volts DC. Protection features include input undervoltage and short circuit protection, overcurrent and over temperature shut down. The OKI-78SR is designed to meet all standards approvals. RoHS-6 (no lead) hazardous material compliance is specifi ed as standard.
Total Output Power (W) 4.95
Output Voltage 1 (V) 3.3
Input Voltage Nominal (V) 24