XL6009 DC-DC Adjustable Boost-Buck Step-Up Step-Down Converter Module

XL 6009 Automatic Buck-Boost Converter for Voltage Regulation & Power Projects

The XL6009 DC-DC Adjustable Boost-Buck Converter Module is a versatile power module designed to step up (boost) or step down (buck) input voltage to a stable, adjustable output. It is widely used in DIY electronics, battery-powered systems, solar applications, and embedded projects where voltage regulation is required.

Unlike simple boost or buck modules, this module operates as a buck-boost converter, meaning the output voltage can be higher or lower than the input voltage depending on the requirement.

Based on the XL6009 switching regulator IC, it uses high-frequency switching (~400kHz) to achieve compact size, high efficiency (~94%), and up to 4A output current.

The onboard multi-turn potentiometer allows precise output voltage adjustment, making it ideal for prototyping and real-world power applications.

Key Features

• Automatic buck + boost (step-up/step-down) operation
• Wide input voltage range: ~3.8V 32V
• Adjustable output voltage: ~1.25V 35V
• Output current up to 4A (peak)
• High efficiency up to ~94%
• High switching frequency: ~400kHz for compact design
• Onboard potentiometer for voltage tuning

Specifications

• IC Chip: XL6009
• Type: Non-isolated DC-DC buck-boost converter
• Input Voltage: 3.8V 32V
• Output Voltage: 1.25V 35V (adjustable)
• Output Current: Up to 4A
• Efficiency: Up to ~94%
• Switching Frequency: ~400kHz
• Mounting: PCB module with screw terminals

Applications

• Battery-powered devices (Li-ion, 18650 packs)
• Solar power regulation systems
• Automotive voltage converters
• LED drivers and lighting systems
• DIY power supplies
• Arduino, ESP32, Raspberry Pi projects

How to Use

1. Connect input supply to IN+ / IN-
2. Connect load to OUT+ / OUT-
3. Rotate potentiometer to adjust output voltage
4. Measure output using a multimeter before connecting sensitive loads

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