XH-M404 DC 4-40V 8A Voltage Regulator Module Digital PWM Adjustabl DC-DC Step Down Voltage Regulator DC XL4016E1


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SKU: 815895
  1. Input voltage: 4-40VDC,
  2. Output voltage: (1.25-36V) continuously adjustable (recommended load debugging).
  3. Efficiency: 94%
  4. Onboard 7 segment display to monitor the voltage.
  5. Output current: 8A(max)
  6. Output Power: 200W (max)


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Category: Buck Converter

This XL4016E1 Step-Down Power Supply Module with voltage rating 4-40VDC to 1.25-36VDC.This module is rated for a maximum power of 200W. The output current for the module can be increased to 8A with the addition of an external fan onto the heatsinks to cool the IC.

Note: This Product is available in two different variants (XH-M404 and HW-263) with the same working we will ship it randomly.


  1. Adjustment method: first correct input power (between 4-40V) 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 XH-M404 DC 4-40V 8A Voltage Regulator Module Digital PWM Adjustable DC-DC Step Down Voltage Regulator DC XL4016E1

SKU: 815895 Category:
Input Voltage (V)

4 to 40VDC

Output Voltage (V)

1.25 to 36VDC

Max Current (A)


Maximum Power (W)




Switching Frequency (KHz)


Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.05 kg
Shipping Dimensions 7 × 5 × 3 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.


Questions and answers of the customers

  1. 0 votes
    Q Can you tell me how to interface with an arduino? answer now
    Asked by ishwak9526152121 on January 15, 2024 1:04 pm

    Interfacing of this module with arduino is quit... Read more

  2. 0 votes
    Q Does the display show Input or Output voltage? answer now
    Asked by Sparks on September 10, 2023 1:24 pm

    No, you have to interface it with Arduino to ge... Read more

  3. 0 votes
    Q Will it show input or output voltage? answer now
    Asked by Sparks on September 8, 2023 11:38 am

    Display will show the output voltage.

    th... Read more

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Country Of Origin: China