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


  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.

350.00 385.00

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.

Weight 100 g
Input Voltage (V) 3 to 34
Output Voltage(V) 4 to 35
Output Current(A) 3
Voltmeter Range(V) 0 to 40
Switching Frequency(KHz) 52
Operating Temperature (°C) -40 to +90
Length (mm) 60
Width (mm) 35
Height (mm) 13.5
Weight (gm) 24
Shipment Weight 0.04 kg
Shipment Dimensions 7 x 4.5 x 2 cm

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