LM25180 PSR flyback quickstart design tool




Welcome to the LM25180 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC flyback regulator based on the LM25180 PSR flyback converter. As such, the user can expeditiously arrive at an optimized design to meet the application requirements.

  • Select transformer parameters including turns ratio and mag inductance
  • Determine input and output capacitances for specified ripple requirements (1% Vout and 5% Vin)
  • Select components for feedback, soft-start, input UVLO, and temperature compensation
  • Advise components (usually optional) for SW voltage clamp and flyback diode snubber
  • Optimize the design using efficiency and solution size as key performance metrics
  • Inspect converter efficiency and switching frequency over load and line
  • Analyze efficiency based on selected component parameters
  • Review auto-generated schematic and BOM list
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Calculation tool

LM25180DESIGN-CALC LM25180 PSR flyback quickstart design tool

Supported products & hardware
Calculation tool

LM25180 Flyback Converter Quickstart Design Tool (Rev. D) SNVC230D.ZIP (3434KB)

Supported products & hardware

Supported products & hardware

Isolated DC/DC converters & modules
LM25180 42-Vin no-opto flyback converter with 65-V, 1.5-A integrated MOSFET LM25180-Q1 Automotive 42-VIN PSR flyback converter with 65-V, 1.5-A integrated power MOSFET
Evaluation board
LM5180EVM-DUAL Wide VIN PSR flyback converter dual-output evaluation module LM5180EVM-S05 Wide VIN PSR flyback converter single-output evaluation module

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