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

(1 customer review)

Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 520422
  1. Input voltage: 4.5-40V,
  2. Output voltage: (3-35V) continuously adjustable (recommended load debugging).
  3. Minimum pressure: 1.5V
  4. Output current: rated current 2A, 3A maximum
  5. Output Power: 15W maximum


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Brand: Generic
Category: Buck Converter
Tags: Buck Converter, LM2596, DC DC Buck Converter

It is LM2596 HV DC-DC Buck Converter 4.5-40V to 3-35V Adjustable Step Down Module. This step down power module is adjustable with a potentiometer.


  1. 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),
  2. Input: IN+ input positive IN- input negative
  3. Output: OUT+ output positive OUT- output negative
  4. Static power consumption is only about 6mA.
  5. Connection: Welding, plus pin can be directly soldered after the PCB.
  6. Short circuit protection: current limiting, thermal protection, self-recovery.
  7. Non-isolated step-down (BUCK) switching regulator.
  8. Short circuit protection: Current limiting, self-recovery
  9. Potentiometer adjustment direction is as Clockwise (increase) and Anti-clockwise (decrease)
  10. Non-synchronous rectification

Package Includes : 

1 x LM2596 HV DC-DC Buck Converter 4.5-40V to 3-35V

Conversion efficiency


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

PCB Size ( L x W ) mm

40 x 20

Shipping Weight 0.095 kg
Shipping Dimensions 9 × 7 × 5 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. 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 1 review

5.0 overall

Add a review

  1. Sameer pawaskar (verified owner)

    As described good stability

    Sameer pawaskar

Questions and answers of the customers

    max. input current?
  1. 0 votes
    Q max. input current? answer now
    Asked by kamaldeepmehra786v on September 12, 2022 11:33 am
    A the maximum input current of this module is around... Read more
  2. What is the difference between this and SKU: 69958... Read more
  3. 0 votes
    Q What is the difference between this and SKU: 699581 ? https://robu.in/product/lm2596s-with-smd-l...... Read more answer now
    Asked by ravi.mamidipalli on July 15, 2022 4:59 pm
    A Output voltages are different this module will giv... Read more
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Country Of Origin: China