XL4005 5A DC-DC Adjustable Step-Down Power Supply Module High Power High Efficiency Voltage Regulator Far More Than LM2596

Description

Description

The XL4005 5A DC-DC Adjustable Step-Down Power Supply Module is a high-performance, high-current buck converter designed for applications requiring efficient voltage reduction with substantial power delivery. 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 that far exceeds the capabilities of common LM2596-based modules.

At the heart of this module is the XL4005 chip from XLSEMI – a 300KHz 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 modules (which typically max out at 1.8A-2A continuous output) .

Key Technical Advantages over LM2596:

Comprehensive Protection Features :

• Built-in thermal shutdown – Automatically shuts down when overheated

• Current limiting – Prevents damage from overload conditions

• Output short protection – Reduces switching frequency during shorts

• EN pin with hysteresis – TTL-compatible shutdown capability

The module includes an adjustable multi-turn potentiometer (typically 25 turns) for fine-tuning output voltage from 1.25V to 36V . A power indicator LED confirms when the module is active, and the input/output pads are clearly labeled for straightforward wiring.

Wide Application Range :

• Battery-powered devices: Convert 12V/24V battery banks to 5V for USB charging or Arduino projects

• LED lighting: Drive 12V LED strips from 24V industrial supplies

• DIY power supplies: Create custom adjustable bench power supplies

• Industrial equipment: Step down 24V PLC rails to 5V or 12V for sensors

• LCD monitors and digital photo frames

• Telecom and networking equipment

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 .

Whether you are an electronics hobbyist, an IoT developer, or an industrial engineer, the XL4005 5A Buck Converter Module provides a powerful, efficient, and reliable solution for all your voltage step-down needs.

Key Features

• 5A High Output Current – Integrated 5A power MOSFET delivers up to 5A peak (4.5A recommended continuous with adequate cooling)

• Wide Input Voltage Range – Accepts DC 5V to 32V input (XL4005 chip supports up to 32V), compatible with 12V, 24V, and other common power systems

• Adjustable Output Voltage – Output can be set from 0.8V to 30V via onboard multi-turn potentiometer

• High Conversion Efficiency – Up to 96% efficiency minimizes power loss and heat generation

• 75W Maximum Power – Capable of delivering up to 75W output power (with adequate cooling)

• 180KHz-300KHz Switching Frequency – Fixed-frequency PWM operation for predictable performance

• Comprehensive Protection – Built-in thermal shutdown, over-current limiting, and output short protection

• Low Dropout Voltage – Minimum dropout of 0.6V ensures efficient operation even with small input-output differentials

• Low Output Ripple – Excellent filtering provides clean DC output for sensitive electronics

• Operating Temperature -40°C to +85°C for reliable operation in various environments

Technical Parameters