LM2577 3A DC-DC Step UP LED Voltmeter 3-34 to 4-35V Adjustable Boost Converter module

(1 customer review)

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SKU: 43605
  1. Input voltage range : 3-34V DC
  2. Output voltage range : 4-35v DC adjustable
  3. Output current:3A
  4. Voltmeter range:0 to 40V,error +-0.1v
  5. Multiple output regulator.
  6. One button to switch input and output voltage display.
  7. Power-down memory function.
  8. Press the button for 3 seconds can turn OFF/ON the LED display.


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Category: Boost Converter
Tags: Power Supply, DC Power Supply, Voltmeter, Voltage Regulator, Multi Output Voltage, 3A Regulator, LM2577, Boost Converter, Step Up Regulator

The LM2577 3A DC-DC Step UP LED Voltmeter 3-34 to 4-35V Adjustable Boost Converter module is a 150 KHz fixed frequency PWM buck (step-down) DC/DC module. Requiring a minimum number of external components, these regulators are cost-effective, and simple to use.

This version of LM2577 DC-DC step-up (boost) power supply module includes the very useful addition of an integrated digital voltage meter.

Together with its high precision multi-turn potentiometer, this means any desired output voltage within its supply range can be set without the need for an external voltage meter. The module also boasts a very high operating range with a DC input supply range of 3 – 34V and an adjustable output range of 4 – 35V.

Features :

  1. Multiple output regulator.
  2. One button to switch input and output voltage display.
  3. Power-down memory function.
  4. Press the button for 3 seconds can turn OFF/ON the LED display.
  5. With wiring terminal.
  6. When adjusting the blue potentiometer, please use a multimeter to monitor the voltage
  7. Rotating Clockwise can raise the voltage while rotating  counterclockwise could lower the voltage
  8. When the module output voltage cannot be adjusted ( the output voltage is always equal to the input voltage ) Please adjust the potentiometer counterclockwise 20 laps (20 turns) or more till it works.

Package Includes :

1 x LM2577 3A DC-DC Step UP Voltmeter.


Output Voltage(V)

4 ~ 35

Max. Output Current (A)


Voltmeter Range(V)

0 to 40

Switching Frequency(KHz)


Operating Temperature (°C)

-40 to 90

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.027 kg
Shipping Dimensions 7 × 4.5 × 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. 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

4.0 overall

Add a review

  1. shatrughan Kumar kaulwanshi

    very good

    shatrughan Kumar kaulwanshi

LM2577 Datasheet

Questions and answers of the customers

  1. 0 votes
    Q if 10 v to 15v 2 A output will it need heat sink answer now
    Asked by shiju22 on January 25, 2023 2:30 am

    No, it won't require a heat sink for output 10V... Read more

  2. 0 votes

    Yes, the LM2577 3A DC-DC Step UP LED Voltmeter ... Read more

  3. 0 votes
    Q Is 3A constant current output or maximum current output? answer now
    Asked by Renata Envirocom Pvt Ltd on November 26, 2020 6:35 pm
    A It is the maximum current output.
  4. 1 vote
    A yes you can also charge a battey but here risk of ... Read more
  5. 0 votes

    The switch is for a different purpose. you can ... Read more

    A if you press the switch you can show the input vol... Read more
Only registered users are eligible to enter questions
Country Of Origin: China

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