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CA-IS3105W

CA-IS3105W

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Complete Isolated DC-DC Converter/Isolated Error Amplifier

The CA-IS3105W is a complete isolated DC-DC converterwith up to 5kVRMS isolation rating. This device integratesmost of the components needed for an isolated powersupply —switching controller, power switches, transformer,soft-start, protection circuit etc. — into a single, compactSOIC package. The result is an efficient and compact fullyintegrated solution that is easy to comply with EMIrequirements and makes power-supply design as easy as possible. Operating over an input voltage range of 4.5V to5.5V, the CA-IS3105W provides a fixed output voltage of3.3V, 3.7V, 5V or 5.4V set by pin SEL. Only output, inputbypass capacitors, and a pull-up resistor for 3.7V or 5.4Voutputs are needed to finish the design.

The CA-IS3105W device features a unique control scheme,which can quickly respond to load transient and accuratelyregulate the output voltage. The device is capable ofdelivering a load up to 650mW output power and offeringsoft-start, current limit, short-circuit protection andthermal shutdown protection features to better enhancethe reliability of the system. The CA-IS3105W includes anenable input pin (EN). Connect the EN pin to the VINPinput voltage or force this pin high to turn on the DC-DCconverter. Force this pin low to disable the device andenter shutdown mode. In shutdown mode, the devicestops switching operation with microampere standbysupply current.

The CA-IS3105W is available in wide-body SOIC16 packageand operates over -40°C to +125°C temperature range.

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  • Features

    Complete Switch Mode Power Supply

    High integration with internal transformer
    Soft-start reduces input inrush current and output overshoot
    Overload and short-circuit protection
    Thermal shutdown

    4.5 V to 5.5 V Input Voltage Range

    Selectable Output voltages

    3.3V, 3.7V, 5V and 5.4V output options

    Delivers up to 650mW(5V/130mA) Output Power

    Robust Galvanic Isolation Barrier

    High lifetime: > 40 years
    Up to 5000 VRMS isolation rating
    ±150 kV/μs typical CMTI

    Wide Operating Temperature Range: -40°C to 125°C

    Low Profile SOIC16-WB (10.30mm × 7.50) Package

    Safety-Related Certifications (Pending)

    5kVRMS isolation for 1 minute per UL 1577
    7071VPK VIOTM and 849VPK VIORM reinforced isolation per DIN V VDE V 0884-11:2017-01
    IEC 60950、 IEC 60601 and EN 61010 certifications per CQC, TUV and CSA

  • Applications

    • Instruments and Apparatuses

    • Industrial automation

    • Motor Control

    • Medical Equipment

    • Industrial Sensors

    • Telecom Equipment

  • Device Information

    Part numberPackagePackage size (NOM)  
    CA-IS3105WSOIC16-WB(W)10.30 mm × 7.50 mm

  • Simplified Functional Diagram

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