LM2596 DC Buck Volt Regulator – need instructions

[Mike Then October 22, 2016 at 6:49 pm Post count: 0]

#9931 Reply |

Hello, I just purchased this LM2596 DC Buck Volt Regulator from Amazon. Link is here – https://www.amazon.com/DROK-Regulator-Converters-Step-down-Voltmeter/dp/B00WEBJRE8/ref=cm_cd_al_qh_dp_t. It’s the one with the clear case. I have absolutely no idea how to adjust it. Can you please link me to a manual? Thank you!

[DrokKeymaster October 23, 2016 at 8:19 am Post count: 2971]

#9945 Reply |

Hello Mike Then,
Thank you for writing in.
Here the PDF file is the datasheet of this product, please check it.
DATASHEET_091029
Hope this can help you.
Bets regards

[Mike Then October 23, 2016 at 4:15 pm Post count: 0]

#9950 Reply |

Hi, thanks for the reply and thanks for linking me to the datasheet. Unfortunately that doesn’t really help me. I need to know how to operate the device. Specifically what I’m trying to do is drop the output voltage to 3.3 volts, as I want to run 5mm LEDs from it. Can you provide instructions on how to do that? Thank you!

[DrokKeymaster October 24, 2016 at 3:15 am Post count: 2971]

#9964 Reply |

Hello Mike Then,
You’re welcome.
Have you tried to adjust the Adjust voltage potentiometer?
If not, please tried to adjust the voltage potentiometer, clockwise for increasing, counter-clockwise for decreasing.
Hope this can help you.
Best regards

[Mike Then October 24, 2016 at 8:11 pm Post count: 0]

#9987 Reply |

I have not tried that, I will try it. But the green light is on, what does that mean? You don’t have any written instructions on what button does what and how to change modes?

[DrokKeymaster October 25, 2016 at 2:47 am Post count: 2971]

#9997 Reply |

Hello Mike Then,
The green light is on, which means that the load is full charged.
There is an image on the datasheet showing all the function of the button and the LED light, like the following image:

Hope this is useful to you.
Best regards

[Jesse M October 26, 2017 at 4:43 pm Post count: 0]

#23803 Reply |

I purchased the LM2596 Immersion Gold Buck Converter but can only get 1.29 Volts output. I am inputing 24V with a bench power supply. I tried going both ways with the potentiometer but no luck. Any ideas?

[DrokKeymaster October 27, 2017 at 8:37 am Post count: 2971]

#23830 Reply |

Hello Jesse M,
Thanks for writing in.
We are sorry to hear that. Did you test it without load?
Please can you take some pictures to show the Label on your package and the item you receive? Please kindly send it to our serivce email(Service@droking.com).
With your help, we can find out problem as soon as possible.
Best regards.

[ralph December 28, 2017 at 9:45 pm Post count: 0]

#28367 Reply |

I purchased two of these and the DROK DC-DC Buck Converter Constant Current&Volt Regulator 5-36V to 1.25-32V Step Down Regulator 5A 75W High Power LED CC Driver Board, Battery Charger for Solar Panels/Wind Driven Generator (https://www.amazon.ca/gp/product/B01EMYHOC6/ref=oh_aui_detailpage_o07_s00?ie=UTF8&psc=1) and I cannot adjust the voltage. I tried turning the voltage potentiometer clock wise and counter clock wise and it does not change at all. I need to turn the voltage down to 5V for a Raspberry PI.

[DrokKeymaster December 29, 2017 at 7:18 am Post count: 2971]

#28370 Reply |

Hello ralph,
Would you please tell us how many turns did you turn the potentiometer counter clock wise？ Is it over 20 turns?
Best regards.

[Jim B Ferguson June 22, 2018 at 10:18 am Post count: 0]

#29890 Reply |

When I turn the voltage adjust it goes from 1.7 volts down to .8 volts over a range of 20 turns with no load.

[DrokKeymaster June 25, 2018 at 9:36 am Post count: 2971]

#29914 Reply |

Hello Jim B Ferguson，

Could you please tell us which item you mean? And more details about the problem?

Best regards.

[ian cummings March 2, 2021 at 4:20 pm Post count: 0]

#62254 Reply |

hi

I bought the lcd buck converter.

how do I set it up to charge 18650s? how do I enter charge mode? manual doesnt discuss

thanks

[DrokKeymaster March 3, 2021 at 8:54 am Post count: 2971]

#62338 Reply |

Hello ian cummings，

Would you please kindly offer the product link or SKU number so that we can confirm which item it is?

No matter which converter it is, please set the output voltage and current for your battery firstly.

Best regards,

DROK

[Author]

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