Description
Description
The XL4015 5A DC-DC Adjustable Buck Converter Module is a high-performance, high-power step-down switching regulator designed for applications requiring efficient voltage reduction. Whether you need to power 5V microcontrollers from a 12V battery, drive 12V LED strips from a 24V supply, or create a custom adjustable power supply, this module delivers reliable, efficient performance.
At the heart of this module is the XL4015 chip from XLSEMI – a 180KHz fixed frequency PWM buck converter that integrates a high-current 5A power MOSFET . This advanced design achieves conversion efficiencies of up to 96%, significantly outperforming older LM2596-based modules (which typically max out at 1.8A-2A continuous output) .
Key Technical Advantages over LM2596:
| Feature | XL4015 (This Module) | LM2596 (Common Alternative) |
|---|---|---|
| Output Current | 5A (4.5A continuous with cooling) | 1.8A-2A practical |
| Maximum Power | 75W | ~15W |
| Efficiency | Up to 96% | 80-85% |
| Switching Frequency | 180KHz | 150KHz |
| Dropout Voltage | 0.3V | 1.5V |
Comprehensive Protection Features :
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Built-in thermal shutdown – Automatically shuts down when overheated
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Current limiting – Prevents damage from overload conditions
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Output short protection – Reduces switching frequency from 180KHz to 48KHz during shorts
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Over-temperature protection – Auto-restart when temperature normalizes
The module includes an adjustable multi-turn potentiometer for fine-tuning output voltage from 1.25V to 36V . The input and output terminals are clearly labeled, making wiring straightforward even for beginners.
Wide Application Range :
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Battery-powered devices: Convert 12V/24V battery banks to 5V for USB charging or Arduino projects
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LED lighting: Drive 12V LED strips from 24V industrial supplies
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DIY power supplies: Create custom adjustable bench power supplies
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Industrial equipment: Step down 24V PLC rails to 5V or 12V for sensors
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Automotive systems: Convert 12V-24V vehicle electrical systems to stable 5V for dashcams or mobile devices
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Solar power systems: Regulate higher solar panel voltages to battery charging levels
Important Operating Note: This module is a step-down (buck) converter only. The input voltage must always be higher than the desired output voltage for proper regulation. It cannot step up voltage .
Please Note: This version is sold without a heatsink. For loads exceeding 2A continuous, you will need to provide your own heatsink to ensure reliable operation.
Whether you are an electronics hobbyist, an IoT developer, or an industrial engineer, the XL4015 5A Buck Converter Module provides a powerful, efficient, and reliable solution for all your voltage step-down needs.
Key Features
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5A High Output Current – Integrated 5A power MOSFET delivers up to 5A peak (4.5A recommended continuous with adequate cooling)
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Wide Input Voltage Range – Accepts DC 5V to 35V input, compatible with 12V, 24V, and other common power systems
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Adjustable Output Voltage – Output can be set from 1.25V to 36V via onboard multi-turn potentiometer
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High Conversion Efficiency – Up to 96% efficiency minimizes power loss and heat generation
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75W Maximum Power – Capable of delivering up to 75W output power (with adequate cooling)
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180KHz Switching Frequency – Fixed-frequency PWM operation for predictable performance
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Comprehensive Protection – Built-in thermal shutdown, over-current limiting, and output short protection
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Low Dropout Voltage – Only 0.3V dropout ensures efficient operation even with small input-output differentials
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Low Output Ripple – Excellent filtering provides clean DC output for sensitive electronics
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Screw Terminal Connections – Easy, solderless wiring for input and output connections
Technical Parameters
| Parameter | Value |
|---|---|
| Input Voltage Range | DC 5V – 35V (max 38V, 35V recommended) |
| Output Voltage Range | DC 1.25V – 36V (adjustable) |
| Output Current (Max) | 5A (peak) / 4A (recommended continuous with heatsink) |
| Output Power (Max) | 75W (with adequate cooling) |
| Conversion Efficiency | Up to 96% |
| Switching Frequency | 180 KHz |
| Dropout Voltage | 0.3V (minimum) |
| Output Ripple | < 50mV (typical) |
| Operating Temperature | -40°C to +85°C |









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