XL4015 5A Adjustable Buck Converter DC 4-38V to 1.25-36V Step Down

🔧 XL4015 5A Adjustable Buck Converter Module | AuscomTech

The XL4015 adjustable buck converter is a compact non-isolated DC-DC step-down module for reducing a higher DC input voltage to a lower regulated output voltage.

It accepts 4V to 38V DC input and provides a continuously adjustable 1.25V to 36V DC output, making it useful for powering electronics from batteries, adapters, solar systems, or bench supplies.

Common uses include Arduino, ESP32, Raspberry Pi projects, LED lighting, motor speed reduction, battery voltage conversion, and DIY adjustable power supply builds.

⭐ Key Features

• Wide Voltage Adjustment – Output can be set from 1.25V to 36V using the onboard potentiometer.
• 4V–38V DC Input – Suitable for many battery packs, adapters, and DC power sources.
• Up to 5A Output – Supports higher-current projects when used with suitable cooling and wiring.
• 75W Power Capacity – Designed for compact power conversion in electronics and embedded systems.
• Efficient Buck Design – Conversion efficiency up to 96% depending on input voltage, output voltage, and load.
• Power Indicator LED – Onboard indicator provides quick visual confirmation that the module is powered.
• Built-In Protection – Includes short-circuit protection with 8A current limit and over-temperature shutdown.

📊 Technical Specifications

• Module Type: Non-isolated buck converter
• Controller IC: XL4015
• Input Voltage: DC 4V–38V
• Output Voltage: DC 1.25V–36V continuously adjustable
• Output Current: 0–5A
• Output Power: Up to 75W
• Operating Frequency: 180kHz
• Conversion Efficiency: Up to 96%
• Load Regulation: ≤0.8%
• Voltage Regulation: ≤0.8%
• Operating Temperature: -40°C to +85°C
• Power Indicator: Yes
• Short-Circuit Protection: Yes, 8A current limit
• Over-Temperature Protection: Yes
• Reverse Polarity Protection: None
• Connection Method: Solder pads
• Mounting: 2 × 3mm screw holes
• Board Size: 54 × 24 × 15mm
• Approx. Weight: 15g

🧩 Typical Applications

• Arduino, ESP32, and Raspberry Pi voltage regulation
• Battery voltage step-down conversion
• DIY adjustable DC power supplies
• LED strip and lighting power control
• Motor, fan, and pump voltage reduction
• Solar and battery-powered electronics projects
• Workshop testing and prototyping

⚠️ Important Notes

• This module steps voltage down only; the input voltage must be higher than the required output voltage.
• Do not exceed the 38V maximum input voltage.
• Check and adjust the output with a multimeter before connecting sensitive devices.
• High-current use may require additional cooling and appropriately rated wiring.
• Reverse polarity protection is not included; incorrect input wiring may damage the module.
• Input pads are marked IN+ and IN-. Output pads are marked OUT+ and OUT-.

📦 Package Includes

• 1 × XL4015 5A Adjustable Buck Converter Module

🔗 Recommended Accessories (Not Included)

• Digital multimeter – for setting and checking output voltage
• DC power adapter – for powering electronics projects
• Heatsink or cooling fan – for higher-load operation
• Solder wire and hookup cable – for secure input and output connections