XL6009 DC-DC Step-Up (Boost) Converter Module
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The XL6009 is a widely used and high-performance DC-DC Step-Up (Boost) Converter Module, often considered the superior replacement for the older LM2577 boost module.
Its primary function is to increase a lower input DC voltage to a higher, regulated output DC voltage with high efficiency.
| Parameter | Value | Notes |
| Type | Non-Isolated Boost Converter (Step-Up) | The output voltage must always be higher than the input voltage. |
| Input Voltage (V_N) | 3V to 32V DC | Optimum range is generally 5V to 32V. |
| Output Voltage (V_OUT) | Adjustable from 5V to 35V (some versions up to 45V) | Regulated via an onboard multi-turn potentiometer. |
| Switching Current | 4A (Maximum) | This is the internal switch's current limit. The actual continuous output current is typically 1.5A to 2.5A and requires a heatsink if operating near the maximum, especially with a large voltage step-up. |
| Efficiency | Up to 94% | Very high efficiency, making it great for battery-powered systems. |
| Switching Frequency | 400kHz | Higher than many older models, allowing for smaller external components and lower ripple. |
The module is simple to connect and adjust, but it requires careful setup of the output voltage.
Pinout: The module has four main solder points:
IN+: Connects to the positive terminal of your power source (e.g., battery).
IN-: Connects to the negative terminal (Ground).
OUT+: Connects to the positive side of your load.
OUT-: Connects to the negative side of your load.
Adjusting the Output (CRUCIAL):
Do not connect your load yet.
Connect your input source (V_IN) to IN+ and IN-.
Connect a multimeter to OUT+ and OUT-.
Use a small screwdriver to turn the onboard potentiometer (trimpot). Turning clockwise increases the voltage, and counterclockwise decreases it.
Adjust the voltage until the multimeter reads the desired value (e.g., 12V).
Connect Load: Once the voltage is stable at the desired level, disconnect the multimeter and connect your final load (device).
⚠️ Important Considerations:
Heat: If the module is drawing currents above approx 2A or if there is a large difference between the input and output voltage, it will generate heat. An additional heatsink or cooling may be required to maintain performance and prevent damage.
Voltage Limit: Remember that the XL6009 is a Boost converter—the V_OUT must always be higher than the V_IN.
High-Power Battery Boost: Powering devices that require 12V, 19V (for laptops), or 24V from a lower voltage battery pack (e.g., a 5V USB or 12V solar panel).
DIY Power Supplies: Creating an adjustable, high-voltage DC bench power supply.
LED Drivers: Supplying the necessary voltage to power high-power LED strips or arrays