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

The LM2577 3A DC-DC Step-Up LED Voltmeter 3-34V to 4-35V Adjustable Boost Converter Module is a versatile power conversion module designed to increase a lower DC voltage to a higher adjustable output voltage.

Based on the LM2577 DC-DC switching regulator, the module accepts approximately 3V to 34V DC input and can provide an adjustable output voltage of approximately 4V to 35V DC.

The onboard LED digital voltmeter provides convenient voltage monitoring, making the module useful for prototyping and adjustable power supply applications. The output voltage can be configured using the onboard adjustment potentiometer.

This module is commonly used in projects where a battery or low-voltage DC source needs to power a device requiring a higher voltage.

Key Features

• Based on the LM2577 DC-DC converter
• DC-DC step-up (boost) converter
• Input voltage: 3V–34V DC
• Adjustable output voltage: 4V–35V DC
• Maximum output current: up to 3A
• Built-in LED digital voltmeter
• Adjustable output voltage
• Compact module design
• Suitable for battery-powered projects
• Ideal for DIY electronics and power applications

Applications

• Battery-powered projects
• DIY adjustable power supplies
• LED projects
• Robotics systems
• Arduino projects
• ESP32 projects
• STM32 applications
• Portable electronic devices
• DC voltage boosting
• Electronics laboratory experiments
• Embedded systems
• Prototype development

How the Boost Converter Works

A boost converter increases the available DC input voltage to a higher DC output voltage.

For example, a suitable battery voltage can be connected to the input, and the output can be adjusted to a higher voltage required by the connected device.

The relationship between input and output current depends on the voltage conversion ratio, load, and converter efficiency. When boosting voltage, the input source may need to supply more current than the output current.

Important Usage Notes

• This module is designed to increase DC voltage.
• The output voltage should be higher than the input voltage.
• Do not exceed the recommended input voltage range.
• Adjust and verify the output voltage before connecting sensitive electronics.
• Ensure the input power source can provide sufficient current.
• Actual continuous output current may depend on input voltage, output voltage, load conditions, and cooling.
• Adequate ventilation may be required during higher-power operation.
• Check the polarity carefully before connecting the power source.
• LED display configuration and whether it displays input or output voltage may vary depending on the specific module version.
• Product appearance and component layout may vary depending on the manufacturing batch.