DC-DC 3A 5V-12V to, 5V Step-down Power, Supply Module

(1 customer review)

In stock

SKU: 1121295
  1. Maximum Output Current: 3A MAX
  2. Conversion efficiency: can up to 97.5%
  3. Switch frequency: 500KHz
  4. Operating temperature: Industrial grade (-40 ° to + 85 °)
  5. Improve conversion efficiency


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Brand: Generic
Category: Buck Converter

This mini DC-DC step-down voltage converter module supports 5-12 voltage input and 5V output with input polarity reverse protection and output overvoltage protection, short circuit protection.

It adopts synchronous rectification technology to ensure ultra-high power conversion of up to 97.5% to take full use of your input power.


  1.  Improve conversion efficiency
  2. Small size, Compact Size
  3. Input with reverse polarity protection diode, will not damage when input connect incorrectly

Package Includes:

1 x DC-DC 3A 5V-12V to 5V Step-down Power Supply Module

SKU: 1121295 Category:
Input Voltage


Input Mode


Output Voltage


Maximum Output Current


Maximum Conversion Efficiency


Full load temperature

30 °C

Switching Frequency


Voltage Regulation


Dynamic Response Speed

5% 200uS

Shipping Weight 0.014 kg
Shipping Dimensions 4 × 3 × 1 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 1 review

5.0 overall

Add a review

  1. pradeepkumarsahoo592 (verified owner)

    Works perfectly for me. No heating issue.



Questions and answers of the customers

    In Specification it says Maximum Output Current: 3... Read more
  1. 0 votes
    Q In Specification it says Maximum Output Current: 3A but in aforementioned it says maximum output ...... Read more answer now
    Asked by amandagar000 on January 13, 2024 3:52 pm

    Maximum output current is 3A. 

  2. which side is input and which is output? can you g... Read more
  3. 0 votes
    Q which side is input and which is output? can you give me more details about pinout/wiring. answer now
    Asked by narinderkverma on March 8, 2022 11:44 am

    The side which has Plus(+) and minus(-) indicat... Read more

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Country Of Origin: China