The XL6019 DC-DC boost converter board is a high-performance voltage step-up solution designed to convert a lower DC input voltage into a higher and adjustable DC output voltage. Based on the XL6019E1 switching regulator IC, the module offers high conversion efficiency, wide input and output voltage ranges, and reliable protection features, making it suitable for a variety of power supply applications.
With its integrated power MOSFET, fixed-frequency PWM control, and built-in over-current and over-temperature protection circuits, the XL 6019 simplifies power circuit design while delivering stable performance. Its screw-terminal design and adjustable output voltage make it easy to use in automotive electronics, battery-powered devices, LED lighting systems, communication equipment, and electronic prototyping projects.
Whether you need to boost a 3.7V lithium battery to 5V, convert 12V to 24V, or create a flexible adjustable power source, the XL6019 module provides a practical and efficient solution for DC-DC voltage conversion.
1. What is XL6019 DC-DC Boost Converter Module?
4. Equivalent and Alternative Modules
6. Comparison: XL6019 vs XL6009
7. Frequently Asked Questions [FAQ]

The XL 6019 DC-DC Boost Converter Module is a high-performance voltage step-up power module built around the XL6019E1 switching regulator IC. Specifically designed for boost and boost-related power conversion applications, operating with an input voltage range of 5V to 40V DC while providing a higher and adjustable output voltage. The chip integrates a high-power MOSFET and delivers low output ripple, high efficiency, and stable performance.
The XL6019E1 features a built-in fixed-frequency oscillator and frequency compensation circuit, which simplify external circuit design and improve system reliability. Its PWM control loop allows the duty cycle to vary linearly from 0% to 90%, enabling precise voltage regulation. The IC also includes over-current protection and an EN (Enable) pin for logic-level shutdown control, making it suitable for a wide range of power management applications.
As a powerful and reliable DC-DC boost converter solution, the XL6019 can efficiently convert low-voltage DC power sources into higher-voltage outputs. It offers advantages such as high conversion efficiency, low quiescent current, a wide input voltage range, adjustable output voltage, and strong load capability. Common applications include power supplies, LED drivers, display systems, audio equipment, communication devices, and various embedded electronic projects.
The module version is designed with convenient screw terminals, allowing easy wire connections without soldering. Its wide adjustable input and output voltage ranges make it suitable for many practical applications. Additionally, the module incorporates protection features such as over-temperature protection and over-current protection, ensuring dependable operation and long service life.
Important Notes:

For continuous long-term operation, recommend to keep the output current below 2.5A.
Should add a heat sink when the output power exceeds 10W.
Since the XL6019 is a boost converter, maintaining at least 1.5V difference between the input and output voltages helps ensure stable regulation and optimal performance.
XL6019 Module Specifications
Parameter | Value |
Module Type | Non-isolated Boost (BOOST) |
Rectification | Non-synchronous |
Input Range | 3V – 35V |
Input Limit | 3V – 40V |
Output Range | 5V – 40V |
Output Limit | 5V – 45V |
Input Current | 0 – 3A recommended (max 5A) |
Efficiency | Up to 94% |
Switching Frequency | 220 kHz |
Output Ripple | < 100 mV |
Load Regulation | ≤ ±0.5% |
Line Regulation | ≤ ±0.5% |
Operating Temperature | -20°C to +85°C (recommended) |
Protection | Over-current, over-temperature, reverse polarity (input) |
Wide Input Voltage Range: Supports 3V to 40V input voltage, with 3V to 35V recommended for stable operation.
Adjustable Output Voltage: Provides an adjustable output range of 5V to 45V, with 5V to 40V recommended.
High Output Current: Delivers up to 5A maximum output current, with 0A to 3A recommended for continuous use.
220kHz Switching Frequency: Operates at 220kHz for efficient power conversion and stable performance.
Precision Voltage Adjustment: Features an onboard precision potentiometer for easy output voltage tuning.
Reverse Polarity Protection: Includes a protection diode to help prevent damage from incorrect input connections.
Integrated MOSFET Design: Uses a built-in MOSFET and BOOST topology, reducing external components and lowering system cost.
Built-In Protection: Equipped with over-current and over-temperature protection circuits for reliable operation.
High Efficiency: Achieves conversion efficiency of over 90%, reducing power loss and heat generation.
Compact Size: Measures 50mm × 28mm × 13mm, making it suitable for space-limited applications.
Flexible Connectivity: Provides both screw terminals and solder pads for convenient wiring.
30W Power Applications: The TO263-5L package design is suitable for boost converter applications up to approximately 30W output power.

The XL6009 DC-DC Boost Converter Module is one of the most common alternatives to XL6019. It offers higher switching frequency and slightly higher current capability.

Another widely used alternative is the LM2577 Boost Converter Module, a classic design known for reliability but lower efficiency and switching frequency.
Comparison Overview
Feature | XL6019 | XL6009 | LM2577 |
Input Voltage | 3–40V | 3–32V | 3.5–30V |
Output Voltage | 5–45V | 5–40V | 4–30V |
Max Current | ~5A | 4A | 3A |
Efficiency | Up to 94% | Up to 94% | ~85% |
Switching Frequency | 220 kHz | 400 kHz | 50 kHz |
Heat Performance | Good | Better | Moderate |
Size | Medium | Compact | Larger |
Key Insight
XL6009 → Better high-frequency performance and smaller passive components
XL6019 → More stable for general-purpose adjustable boost applications
LM2577 → Older design, lower efficiency, but still widely used in low-cost systems
Automotive Power Systems: Commonly used in vehicle electronics to convert a 12V supply into adjustable output voltages ranging from 5V to 30V. It can power smartphones, MP3/MP4 players, portable gaming devices, GPS units, and other automotive electronic accessories.
Battery-Powered Devices: The module is ideal for boosting the voltage of lithium-ion batteries, such as converting a 3.7V battery to 5V or 12V. Frequently used in portable power banks, battery-powered equipment, and backup power systems.
LED Driver Applications: XL6019 can provide the higher voltages required for driving high-power LED strings, LED lighting systems, and display backlighting applications with stable output performance.
Embedded System Testing: Engineers and hobbyists use the module as an adjustable power source for circuit development, voltage simulation, prototype testing, and laboratory experiments.
RC and Hobby Electronics: Widely used in RC vehicles, drones, model aircraft, and DIY electronics projects, such as boosting a 7.4V battery to 12V for motors, controllers, and audio amplifier power supplies.
Often consider the XL6009 module upgraded version in switching frequency and compact performance.
XL6009 Advantages
· Higher switching frequency (400 kHz vs 220 kHz)
· Smaller external components
· Lower output ripple (~50 mV)
· Slightly better efficiency in high-load conditions
XL6019 Advantages
· Better general stability for wide voltage range applications
· Easier thermal handling in moderate loads
· Strong performance in adjustable voltage systems
· More flexible for mixed input/output conditions
Summary
XL6009 → Best for compact, high-frequency designs
XL6019 → Best for stable, general-purpose boost applications
For complete electrical characteristics, pin configuration, application circuits, and design guidelines, you can refer to the XL 6019 data sheet.
XL6019 is a high-efficiency DC-DC boost converter IC used to step up low DC voltage to a higher adjustable output voltage.
A boost converter is a switching regulator that increases input DC voltage to a higher output voltage using energy storage components like inductors.
The recommended input range is 3V to 35V, with a maximum limit of 40V.
No, XL6009 is a non-isolated boost converter, not a buck-boost converter.
It is used to increase voltage levels in battery-powered systems, LED drivers, automotive electronics, and power supply designs.
XL6009 is newer, more efficient, and operates at higher frequency (400kHz), while LM2577 is older, lower frequency (50kHz), and less efficient.
The XL6019 DC-DC boost converter module is a versatile and efficient solution for stepping up DC voltage in a wide range of applications. With its wide input range, adjustable output, integrated protection features, and easy-to-use module design, it is suitable for both beginners and advanced electronics engineers.
When compared with alternatives like XL6009 and LM2577, the XL6019 stands out as a balanced choice for stable, general-purpose power conversion systems.
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