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Ultra-Compact Chip-Level DC/DC Converter for Medical and Automotive Applications

Chip-Level DC/DC Converter
Chip-Level DC/DC Converter

MORNSUN has launched the B0505ST16-W5 fixed input, DC/DC converter with reinforced 5KVAC high isolation and trimmable output voltages of 3.3V, 3.7V, 5V, 5.4V. This new chip-level converter is designed for high-end applications and is the ideal power solution for applications of automotive electronics, medical equipment, electricity, industrial control, etc. This device features system operating voltage up to 849VDC and isolation capacitance as low as 3.5Pf. Moreover, it is suitable for the space-limited design of handheld devices and portable devices to save PCB layout space.


The B0505ST16-W5 converter features an integrated soft-start circuit to prevent inrush current and output overshoot. It offers a wide temperature range of which makes it work stably in harsh environments. The chip adopts a unique control architecture with a built-in feedback loop, which can quickly respond to load changes and achieve regulated output.



  • Isolation voltage is up to 5KVAC, reinforced insulation

  • Wide working Temp. -55℃ to +125℃

  • Adjustable output voltage: 3.3V, 3.7V, 5V, 5.4V

  • Meet EN60601-1 2x MOPP

  • Meets AECQ-100(under testing), IEC / UL / EN62368(under testing)

  • SOIC 16 Package



  • Automotive electronics

  • Medical equipment

  • Electricity

  • Industrial control

Component Datasheet

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