Buck Converter Design Assistance

flux

0:00

I can build this, but the project is currently empty, so the work starts with the schematic-design Stage 1 handshake: define architecture in Mermaid, save it to the System Architecture project property, and share it with you . I have already done that.
Work done
  • Created and saved the required Mermaid system architecture diagram into the System Architecture project property, and shared it back to you (per the schematic-design skill requirements) .
  • Identified the exact regulator part to use: TPS54336ADRCR.
  • Attempted to pull the datasheet via the built-in datasheet tool, but the library part does not currently have a Datasheet URL attached (so the tool cannot extract equations/pin details yet).
Success criteria review
  • ✅ Architecture documented and synced to project property as required before adding parts
  • ❌ Schematic not yet populated: no TPS54336ADRCR, inductor/caps/diode/comp/SS/EMI/TVS placed or wired yet
  • ❌ Cannot “calculate per datasheet” yet because the datasheet extraction tool has no source URL for the part (must attach TI datasheet URL to proceed with exact pin names + equations)
Next steps
  • If you confirm, I will:
    • Place TPS54336ADRCR and all required passives/protection parts using Generics (with Role and Role Details on every part) and fully wire the schematic .
    • Add a project/component property Datasheet URL for TPS54336A (TI link) so I can extract the exact RT/FB/COMP/SS guidance and then compute values strictly from the datasheet.
Tell me whether you want the switching frequency targeted (example: 400 kHz vs 600 kHz), and whether reverse-polarity protection is required or “optional but include footprint.”
85 days
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Obliged Scarlet Pip boy

Obliged Scarlet Pip boy thumbnail
Welcome to your new project. Imagine what you can build here.

Properties

flowchart TD VIN["24V input from 1m cable"] --> TVS["TVS clamp"] TVS --> RP["Reverse polarity protection"] RP --> EMI["EMI filter (Pi): C_IN_BULK - FB/LC - C_IN_HF"] EMI --> BUCK["TPS54336 buck stage"] BUCK --> L1["Inductor"] L1 --> VOUT["5V output"] VOUT --> COUT["Output capacitor bank"] BUCK --> FB["Feedback divider"] BUCK --> COMP["Compensation network"] BUCK --> SS["Soft start cap"] BUCK --> BOOT["Bootstrap cap"] BUCK --> CIN["Input caps close to VIN"] BUCK --> PGND["Power ground"] BUCK --> AGND["Signal ground"] FB --> VOUT COMP --> AGND SS --> AGND BOOT --> SW["Switch node"] CIN --> PGND COUT --> PGND EMI --> PGND TVS --> PGND RP --> PGND BUCK --> SW SW --> D1["Schottky diode"] D1 --> PGND SW --> PGND

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