Buck Converter Recommendations

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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 NamePart UIDMPNInput RangeMax OutputPackageDatasheet
LM2596 DC-DC buck converter57f127f8-d33f-4a60-81ef-5919f0cc15a4LM25963 – 40 V3 AModule (TO-263)Datasheet
TPS54302DDCRb5ce4c90-3ab6-413d-b2f9-0f2166694842TPS54302DDCR4.5 – 60 V3 ASOT-23-62411041759_Texas-Instruments-TPS54302DDCR_C311983.pdf
LMR14030SDDARdd70ade3-f76b-4477-8b00-5819f0cc15a4LMR14030SDDAR4.5 – 40 V3 ASO-82410010331_Texas-Instruments-LMR14030SDDAR_C182078.pdf
LM5164DDA6c409799-d1a6-46a2-9152-6bdfcd59ffa0LM5164DDA6 – 100 V1 ASOT-23-5Datasheet
TPS53355DQPR0b0a2bc8-fc68-4d18-8c39-33a3c994caffTPS53355up to 65 V30 AQFNDatasheet
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
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