LM2596 HV DC-DC Buck Converter 4.5-40V to 3-35V Adjustable Step Down Module
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020

LM2596 HV DC-DC Buck Converter 4.5-40V to 3-35V Adjustable Step Down Module

Available:Out of Stock
  • Product SKU: KG132
₹ 99 ₹ 129
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LM2596 HV DC-DC Buck Converter is made of high-quality material. This kit is more stable. It is LM2596 HV DC-DC Buck Converter with voltage rating 4.5-40V to 3-35V. This step-down power module is adjustable with a potentiometer.

This Electronic Voltage Converter output of 1.25V to 30V DC voltage is continuously adjustable, high efficiency, and maximum 3A output current. Its Input voltage range is DC 3.2V to 35V (the input voltage must be higher than the output voltage of 1.5V or more cannot be increased).


  • Adjustment method: first correct input power (between 4.5-50V) then multimeter to monitor the output voltage and adjust potentiometer (usually clockwise turn boost, buck turn counterclockwise),
  • Input: IN+ input positive IN- input negative
  • Output: OUT+ output positive OUT- output negative
  • Static power consumption is only about 6mA.
  • Connection: Welding, plus pin can be directly soldered after the PCB.
  • Short circuit protection: current limiting, thermal protection, self-recovery.
  • Non-isolated step-down (BUCK) switching regulator.
  • Short circuit protection: Current limiting, self-recovery
  • Potentiometer adjustment direction is as Clockwise (increase) and Anti-clockwise (decrease)
  • Non-synchronous rectification

Technical Details 

  • Input Voltage (V) : 4 ~ 40 VDC
  • Output Voltage(V) : 3 ~ 35
  • Max. Output Current (A) : 3
  • Conversion efficiency : 92%(highest)
  • Switching frequency : 150 KHz
  • Output ripple : 30mA (maximum)
  • Load Regulation : ± 0.5%
  • Voltage Regulation : ± 0.5%
  • Dynamic Response speed : 5% 200uS
  • Operating Temperature (°C) : -40 to 90

Physical Attributes

  • Length * Width * Height  (mm) :43 * 20 * 12 mm
  • Weight (gm) : 10

    Product Video


    Customer Reviews

    Based on 18 reviews
    murli dhar
    Very easy to use, will buy more

    Used it to step down 5v to 3.7v. Works great

    Great product

    I used one of these converters with output adjusted to 2.5vdc. It powers a triple exhaust fan for my car from 12vdc. It's so small it fits into the battery cavity replacing 2 AA batteries. Love it.

    Worked perfectly.

    I used this to knock 24vdc down to 5vdc for a Raspberry Pi. It was easy and straight forward.

    It's cheap and you get two

    Bought it to wire 12v fan on my 24v 3d printer.Holes big enough for easy wire soldering, adjustment screw is solid, set it up for 12v using multimeter and it works flawlessly so far.Still have a second one unpacked for future projects.

    sagar @ takla
    Keep turning the adjust, one way then the other it should work eventually

    Worked great

    Great buy

    The product was exactly what I wanted and I am so happy with my purchase.

    man singh
    These convertors work as advertised.

    Inexpensive for what it is. Easy to adjust and put into service.

    These work!

    Simply solder in the line side, adjust the voltage on the output side, then solder on your output wires. Too easy!

    dr. hema hari pago
    Worked perfect

    These are working great for my projects. Easy enough to hook up. They are a little bulky. But if space is non issue I can't fault the unit.

    jeeya lal
    Not good

    It worked first time but when i charged second time It stopped working