LM2596S DC-DC Buck Converter Power Supply

(43 customer reviews)

In stock

SKU: 11548
  1. Input voltage: 3-40V
  2. Output voltage: 1.5-35V(Adjustable)
  3. Output current: Rated current is 2A, maximum 3A
  4. Switching Frequency: 150KHz
  5. Operating temperature:Industrial grade (-40 to +85 )
  6. Conversion efficiency: 92%(highest)

 57.00  59.00

(inc GST)

₹ 48.31 (+18% GST extra)

  You save(3.4%): ₹ 2.00

In stock

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    For bulk and B2B enquiries kindly mail us at [email protected]
    Brand: Generic
    Category: (Step-Down) Buck Converter
    Tags: Power Supply, DC Power Supply, Voltage Regulator, Step Down Converter, Buck Converter, Multi Output Voltage, 3A Regulator, LM2596

    DC-DC Buck Converter Step Down Module LM2596 Power Supply is a step-down(buck) switching regulator, capable of driving a 3-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, and an adjustable output version.

    The LM2596 series operates at a switching frequency of 150kHz, thus allowing smaller sized filter components than what would be required with lower frequency switching regulators.


    This is an LM2596 DC-DC buck converter step-down power module with the high-precision potentiometer, capable of driving a load up to 3A with high efficiency, which can work with Freeduino UNO, other mainboards, and basic modules. When the output current keeps greater than 2.5A (or output power greater than 10W), please add a heat sink to it.

    This device is internally compensated to minimize the number of external components to simplify the power supply design.

    Since LM2596 converter is a switch-mode power supply, its efficiency is significantly higher in comparison with popular three-terminal linear regulators, especially with higher input voltages. The LM2596 operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators.


    This module does not come with Onboard SMD Status LED. Please refer SKU 699581 For Onboard SMD Status LED


    1. Input voltage:3-40V
    2. Output voltage:1.5-35V(Adjustable)
    3. Output current: Rated current is 2A, maximum 3A(Additional heatsink is required)
    4. Module Properties: non-isolated constant voltage module
    5. Rectification: non-synchronous rectification
    6. Short circuit protection: current limiting, since the recovery

    Package Includes:

    1 x LM2596S DC-DC Buck Converter Power Supply

    Input voltage


    Output voltage


    Output current

    Rated current is 2A, maximum 3A(Additional heatsink is required)

    Switching Frequency


    Operating temperature

    Industrial grade (-40 to +85 )

    Conversion efficiency


    Load Regulation

    ± 0.5%

    Voltage Regulation

    ± 0.5%

    Dynamic Response speed

    5% 200uS



    Shipment Weight

    0.011 kg

    Shipment Dimensions

    5 × 4 × 2 cm

    15 Days Warranty

    This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects.

    What voids warranty:

    If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

    Based on 43 reviews

    4.7 overall

    Add a review

    1. Jayachandran (verified owner)

      Works as expected.


    2. NANDAN ELECTRONICS (verified owner)

      Very good quality products


    3. sacttianan2012 (verified owner)

      Excellent Service and thanks


    4. SUDEEP OREYA (verified owner)

      working very well. good till 2amp more than that you need heat sink. it can go till 3amp.


    5. Sandesh (verified owner)

      Great product. I am using this to convert 12V DC to 5V DC. It runs without any problems. The output voltage is also constant. When I increase input voltage to 14 V, the output still gives 5V.
      The current drawn in my case is just over 100 mA, and the device can handle it easily without even getting warm.

      The trimmer pot (blue) needs to be turned many times to see the voltage change at output. So if you are not observing any voltage change at the output, turn the trimmer pot screw at least 20 turns (clockwise to increase voltage, counter-clockwise to decrease voltage).


    6. sidadharajasidadharaja782 (verified owner)

      missing LED


    7. Manpreet Deol (verified owner)

      great service of robu 👍🔝👍🔝👍🔝👍🔝👍

      Manpreet Deol

    8. mayankloriya12

      I would suggest this product totally Great 🙂 🙂 🙂


    9. sanjeev.tomer (verified owner)

      Works good, ignore my previous review, it could not rotate the adjuster enough. Good one works like a charm!


    10. mayurvbhoir (verified owner)

      value for money,
      working fine.
      quality is very good.


    11. Satyakam Srivastava (verified owner)

      excellent product i used it for my CAR AUDIO DIY project, running excellent.

      Satyakam Srivastava

    12. xbox123456789gamer (verified owner)

      Good and cheap


    13. arindumroy2000 (verified owner)

      Very Good


    14. Shivraj Jangada (verified owner)

      good product

      Shivraj Jangada

    15. subhankarmajumder1433 (verified owner)

      good product…


    16. Harsh Pandey harsh pandey Harsh Pandey Harsh Pandey


      Harsh Pandey harsh pandey Harsh Pandey Harsh Pandey

    17. Nandakumar (verified owner)

      Very Good Product, cheap and high accurate output


    18. akhilrkarivannur (verified owner)

      Good quality product


    19. vinesh (verified owner)

      The product looks good,but since I haven’t used it yet,It’s a bit premature to give a meaningful feedback..


    20. D T Vijayaraj (verified owner)

      We used it for converting 24 V to 5 V, results are good.

      D T Vijayaraj

    21. Sharathkumar Shetty

      Good product for the Money paid

      Sharathkumar Shetty

    22. ananthunalloor (verified owner)

      works well, great product


    23. Nandakumar (verified owner)

      Good Product , and Very Low Price


    24. kamalakar (verified owner)



    25. debrajdeb123 (verified owner)

      Good product at competitive price. I purchase the modules to take inductors, as purchasing inductors as single piece is more expensive.


    26. avinash kumar (verified owner)

      perfect , compact and cheaper there other online sale

      avinash kumar

    27. Sanjay Tiwari (verified owner)

      great product

      Sanjay Tiwari

    28. Sundeep Budhraja (verified owner)

      Overall, the product is good. However, the trimpot used in it is of a poor quality unlike the one shown on the website.

      Sundeep Budhraja

    29. Sonu Chaurasia (verified owner)

      It’s look good but out voltage dosent chane while turning potentiometer but voltage remain sain

      Sonu Chaurasia

    30. R.SURENDRAN (verified owner)



    31. sakib (verified owner)

      very good product


    32. Rajnikant Patel

      Good Product and price

      Rajnikant Patel

    33. Lalit (verified owner)

      Good and value for money


    34. Raghavendra

      Dc/dc converter PCB quality is good. We will use it for a while and connect on reliability. But overall we are happy.


    35. SUJEET KUMAR YADAV (verified owner)

      Good product for rc hobby


    36. Deb (verified owner)

      good product… good price….


    37. Tanmay (verified owner)

      You can read my diy article based on this module at EFY’s website. Perfect product with perfect pricing.


    38. Akash



    39. Chris Thaliyath (verified owner)

      Very good product

      Chris Thaliyath

    40. ROY CHAKKALAKKAL (verified owner)



    41. Sivasubramanian (verified owner)

      Product is very good and the price is also very competitive.


    42. Thangavel (verified owner)

      Good product, very very best price super


    43. bhavesh (verified owner)

      good product at best rate



    Questions and answers of the customers

    1. 0 votes
      Q Can i provide 5400mAh, 11.1V, 25C Lipo battery Input? answer now
      Asked by yashwanth1kmm on December 14, 2020 11:30 pm


    2. 0 votes
      Q can connect 6 volt 9 volt 12 volt bettery ? answer now
      Asked by fahimgis on October 10, 2020 3:02 pm
      A yes you can but remember, input voltage should be ... Read more
      A Yes. It can be connected to any type of DC supply ... Read more
      A yes you can connect upto 40volt battery
    3. 0 votes
      Q can I use this buck converter to charge my phone? answer now
      Asked by Vivekanand kumar on September 7, 2020 2:59 pm
      A Set the output to 5V to charge your phone
      A It can be used I guess. You should match the outpu... Read more
    4. 0 votes

      No, it requires Dc input. kindly do not connect... Read more

      A You can use a full bridge rectifier between the tr... Read more
      A You will have to use a rectifier circuit connected... Read more
    Only registered users are eligible to enter questions
    Country Of Origin: China

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