I’ve verified the core wiring requirements, including the unusually small 2.2 nF bootstrap capacitor and the required feedback-ripple network. I’m finishing the alternatives and sourcing sections, with any unresolved compatibility claims clearly labeled.
The Texas Instruments LM5013DDAR is a 100-V, 3.5-A non-synchronous buck DC/DC converter in an 8-pin SO PowerPAD package, intended to step a higher DC supply down to a regulated positive rail. A common integration is a 48-V nominal industrial or telecom supply producing 12 V at up to 3.5 A; TI's typical application targets 300-kHz switching.
This guide covers the LM5013DDAR pinout, buck converter schematic integration, PCB layout, component selection, and purchasing. It is an integration guide, not a validated power-supply design for an unspecified input range or load.
Created and checked the LM5013DDAR Application and Usage Guide in project files, covering all seven requested sections with citations and source links. No drop-in replacement was verified; the guide clearly identifies the verified functional alternative and the second candidate whose datasheet verification remains unresolved.