EVL8017-L-00A Transformer

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Dear Monolithic Power Systems Support Team,

I hope you are doing well.

We are currently developing a compact, low-noise PoE-powered measurement device using the MP8017GL controller in Active-Clamp Primary-Side Regulation (PSR) mode. We have referred to the EVL8017-L-00A evaluation board design, which specifies the transformer TWPEP090909B300T. However, we understand that this part is likely an evaluation board-specific transformer and may not be suitable or readily available for production use.

We would greatly appreciate your guidance in selecting a production-ready flyback transformer that meets our design requirements:

Design Parameters:

  • Controller: MP8017GL

  • Operating Mode: Active-Clamp PSR

  • Input Voltage Range: 37V to 57V (Standard PoE)

  • Output Voltage: 12V

  • Maximum Output Power: 12 W

  • Target Switching Frequency: ~650 kHz

  • Key Constraints: Small physical size and low EMI are critical — as this is a precision measurement product with stringent form factor and EMI constraints

We would like to ensure that the recommended transformer:

  • Matches or closely aligns with the inductance, turns ratio, and frequency characteristics used on the EVL8017-L evaluation board

  • Is available for production (or has an available manufacturer part number)

  • Has appropriate isolation ratings for PoE

  • Is suitable for use with the MP8017GL in Active-Clamp PSR configurations

If there are any specific transformer models, manufacturer part numbers, or design guidelines you recommend (including primary/secondary inductance target, turns ratio, and physical guidelines), we would be grateful to receive them.