Buck Converter Recommendations
2:51
Here are five Texas Instruments-based buck regulators that can be set to a 3.3 V output over wide input ranges. Pick the one(s) that best fit your input-voltage span, current requirement and layout constraints:
Table
| Part Name | Part UID | MPN | Input Range | Max Output | Package | Datasheet |
|---|---|---|---|---|---|---|
| LM2596 DC-DC buck converter | 57f127f8-d33f-4a60-81ef-5919f0cc15a4 | LM2596 | 3 – 40 V | 3 A | Module (TO-263) | Datasheet |
| TPS54302DDCR | b5ce4c90-3ab6-413d-b2f9-0f2166694842 | TPS54302DDCR | 4.5 – 60 V | 3 A | SOT-23-6 | 2411041759_Texas-Instruments-TPS54302DDCR_C311983.pdf |
| LMR14030SDDAR | dd70ade3-f76b-4477-8b00-5819f0cc15a4 | LMR14030SDDAR | 4.5 – 40 V | 3 A | SO-8 | 2410010331_Texas-Instruments-LMR14030SDDAR_C182078.pdf |
| LM5164DDA | 6c409799-d1a6-46a2-9152-6bdfcd59ffa0 | LM5164DDA | 6 – 100 V | 1 A | SOT-23-5 | Datasheet |
| TPS53355DQPR | 0b0a2bc8-fc68-4d18-8c39-33a3c994caff | TPS53355 | up to 65 V | 30 A | QFN | Datasheet |
Recommendations:
- For moderate current (≤ 3 A) and 4.5–40 V rails, use LMR14030SDDAR or TPS54302DDCR (both easily set to 3.3 V).
- If you need a module for rapid prototyping, the LM2596 board is ubiquitous.
- For very high input (up to 100 V) at light loads (≤ 1 A), choose the LM5164DDA.
- For high-current applications (tens of amps), consider the TPS53355.
Let me know which one(s) you’d like to place into your schematic, and I can add them for you.
Add LMR14030SDDAR
Add TPS54302DDCR
Add LM5164DDA
Add TPS53355DQPR
Add both mid-range bucks
335 days
To get started, talk to Flux or create a New Document.
Welcome 👋
Flux helps you build PCBs faster with an AI teammate!
Create your account to collaborate, stay updated, fork your own version, and get instant answers from our AI agent.