The LM2577 Adjustable DC-DC Boost Module is a compact and efficient step-up power converter designed for applications requiring higher voltage outputs from a lower voltage input source. Operating within an input range of 3.5V to 35V, this module can boost the output to anywhere between 5V and 56V, with current delivery up to 2A depending on load and configuration. Equipped with built-in current and thermal protection, it ensures safe operation under varying conditions. Its red onboard power LED provides clear operational status. Perfect for hobbyists, engineers, and makers, this module is well-suited for robotics, embedded systems, battery-powered devices, and voltage regulation in various electronic projects. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Features:
Adjustable DC-DC boost (step-up) converter using LM2577 IC.
Wide input voltage range: 3.5V to 35V.
Adjustable output voltage: 5V to 56V.
Supports up to 2A output current for medium-power applications.
Integrated current and thermal limiting for circuit safety.
Power indicator LED for easy operation monitoring.
Compact size for easy integration into projects.
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Applications:
Powering higher voltage circuits from lower voltage batteries.
Robotics and automation projects requiring stable boosted voltage.
DIY electronics and embedded system voltage regulation.
Step-up supply for LED strips, motors, and small appliances.
Educational projects for learning DC-DC converter principles.
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| Module Type | LM2577 Adjustable DC-DC Boost Converter |
| Input Voltage Range | 3.5V – 35V |
| Output Voltage Range | 5V – 56V (adjustable) |
| Output Current | Up to 2A (depending on setup) |
| Output Power | Approx. 9W – 45W |
| Protection Features | Current limiting, Thermal limiting |
| Indicator | Red LED (Power ON) |
| Module Size | Compact, heatsink required for heavy loads |
| Shipment Weight | 0.0146 kg |
| Shipment Dimensions | 4 × 3 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
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Documentation:
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Voltage Adjustment
The module has a multi-turn pot for adjustment of the output voltage.
Turning the pot CW increases the output voltage while turning it CCW decreases the output voltage.
The lowest output voltage will be determined by the input voltage as the output cannot be at a lower voltage than the input. The highest output voltage is 56V. While it is possible to adjust the output to be higher than 56V, permanent damage to the board will occur (so don’t do that!).
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Module Connections
These are compact little boards with the input power applied to one end and output power available on the other end. With the silkscreen right-side up, the input will be on the right side.
Connections are solder type so wires or header pins will need to be soldered to the board to connect power. For light duty use on a solderless breadboard where not much current is being pulled, short M/M jumper wires can work to connect power by soldering one end to the board and using the other end to plug into the breadboard. For short term use such as to test the module, alligator clips can be used to make the connections.
Input Power
IN+ = Input voltage (3.5 to 35V)
IN- = Ground for Input
Output Power
OUT+ = Output voltage (5 to 56V)
OUT- = Ground for Output
Note: The grounds are not isolated so the IN- and OUT- are connected together on the module.
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OUR EVALUATION RESULTS:
These modules are mainly handy when a higher voltage is needed and only a modest amount of current is required.
The LM2577 Adjustable DC-DC Boost Module maximum output power varies with the input voltage coming into the module and the output voltage setting.
The table has measurements taken at different input/output voltages to get a feel for the amount of power that can be pulled from the device under some typical operating conditions. Note that we aren’t testing it to the limits, these are just some representative operating points while keeping the IC well within a comfortable temperature range.
The thermal results are measured at the heat sink with an ambient temp of approx 25°C and no fan cooling. We tested to a maximum of 2A or the max supported by the module with the specific input / output settings as listed in the table. Efficiencies are also calculated.
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Package Includes:
1 x LM2577 Adjustable DC-DC Boost Module
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