XL6019 DC-DC Step-Up Boost Converter 3V-40V to 5V-45V Module

XL6019 DC-DC Step-Up Boost Converter – Reliable Adjustable Power for Your Projects

Power your electronics with confidence using the XL6019 DC-DC Step-Up Boost Converter Module. Whether you're building a portable device, working on a notebook car adapter, or designing a custom power supply, this compact and efficient booster module delivers stable, adjustable output voltage from 5V up to 45V — all from an input as low as 3V. With up to 94% conversion efficiency and built-in protection features, it's the go-to choice for hobbyists, engineers, and electronics enthusiasts alike.

Made in Mainland China.

Key Features

• Wide Input Range: Accepts 3V–40V input (recommended 3V–35V), making it compatible with a broad range of power sources including batteries, solar panels, and DC supplies.
• Adjustable Output Voltage: Dial in your desired output from 5V to 45V (recommended 5V–40V) using the onboard potentiometer — no extra components needed.
• High Efficiency: Achieves up to 94% conversion efficiency, minimizing heat generation and maximizing battery life in portable applications.
• Built-In Protection: Features over-temperature and over-current protection circuits, plus anti-reverse connection protection up to 40V to safeguard your components.
• Stable Output: Output ripple less than 100mV, with load and voltage adjustment rates of just ±0.5% for rock-solid, consistent power delivery.
• 220kHz Switching Frequency: Second-generation switching power supply technology ensures fast, efficient power conversion with reduced electromagnetic interference.
• Compact Form Factor: Measures just 50×28×13mm (approx. 1.95×1.09×0.51 in), fitting easily into tight enclosures and DIY project builds.
• Versatile Applications: Ideal for EPCs, notebook car adapters, voltage conversion circuits, handheld device power supplies, and up to 30W boost applications.

Technical Specifications

What's in the Box?

• 1× XL6019 DC-DC Step-Up Boost Converter Power Module

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Learn More About Electrical Safety & Standards

For guidance on safe use of electrical components and modules, visit the U.S. Consumer Product Safety Commission (CPSC) and the OSHA Electrical Safety guidelines.

Note: Due to monitor and lighting variations, the actual product color may differ slightly from images. Please allow ±1–2cm measuring deviation due to manual measurement.

Frequently Asked Questions

Q: What is the maximum output voltage of the XL6019 DC-DC boost converter module?

A: The XL6019 step-up boost converter can output a maximum of 45V (recommended up to 40V), which is adjustable via the onboard potentiometer. The output is always higher than the input voltage since this is a boost (step-up) converter.

Q: Can I use this boost converter module to charge devices like laptops or phones?

A: Yes — this module is well-suited for notebook car adapter applications and handheld device power supply circuits. It supports up to 30W of boost power, making it ideal for powering or charging a variety of portable electronics when paired with the appropriate connectors and input power source.

Q: Is the XL6019 module protected against incorrect wiring?

A: Absolutely. The module includes anti-reverse connection protection on the input (up to 40V), as well as built-in over-temperature and over-current protection circuits, helping prevent damage to both the module and connected devices in case of wiring errors or unexpected load conditions.

Q: How do I adjust the output voltage on this step-up converter?

A: Simply rotate the onboard potentiometer (trim pot) clockwise or counterclockwise to increase or decrease the output voltage within the supported range of 5V–45V. Always use a multimeter to verify the output voltage before connecting sensitive equipment.