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πŸ”Œ lm317 dc-dc converter buck circuit board with adjustable linear regulator - pack of 5 logo

πŸ”Œ LM317 DC-DC Converter Buck Circuit Board with Adjustable Linear Regulator - Pack of 5 Review

4

Β·

Very good

Revainrating 4 out of 5Β Β 
RatingΒ 
4.0
πŸšͺ Garage & Shop, πŸ”§ Automotive Tools & Equipment

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Description of πŸ”Œ LM317 DC-DC Converter Buck Circuit Board with Adjustable Linear Regulator - Pack of 5

Output Current: 1.5A (min), 2.2A (type) Input-output voltage differential (VI-VO): 40Vdc (max). Adjustable output voltage range: 1.2 ~ 37V. Operating temperature: -55? to +150?. Current output: 1.5A Voltage Input: 4.2 ~ 40 V. Characteristic frequency: 100 (MHz) Module size: 35.6 (mm) x16.8 (mm).

Reviews

Global ratings 4
  • 5
    2
  • 4
    1
  • 3
    0
  • 2
    1
  • 1
    0

Type of review

Revainrating 5 out of 5

Works great - good price

Works great - I've used them on several projects. I can't build them myself at this price. Just don't exceed the 1.5 amp load.

Pros
  • Dope πŸ”₯
Cons
  • Negative impression

Revainrating 5 out of 5

Works very well

Works very well. Some of them shorted out due to my mistakes, they got hot but after correcting the wiring they worked fine. The price can only rejoice, the quality is good.

Pros
  • Price
Cons
  • Not bad but...

Heatsinks are too small for the rating - but at 1.5A or less they work fine. A little touchy in the settings but I wasn't expecting much. Off-brand LM317 (but not surprising given the provenance). Conveniently at hand and well-suited for projects that require a clean linear RF source. Handy for kids projects or quick fixes and cheaper than I could put together from parts.

Pros
  • Absolutely amazing!
Cons
  • Slightly torn

Revainrating 2 out of 5

The heatsinks were loose and had no thermal paste!

These are good regulators but they need to be repaired before they can be used. Two of the 5 regulators had loose heatsinks, one had to be adjusted, and none of them had thermal paste on them. I had to grind the end of one of the heatsinks to install it. I added thermal paste to all the regulators because without the ground there would be no heat transfer from the regulator to the heatsink. 1.25 to 30V range. I'll probably change the potentiometer to either a fixed value or a 5K potentiometer…

Pros
  • New
Cons
  • Definitely a bad product