XL4005 5A DC-DC adjustable step-down/buck Converter

XL4005 DC-DC adjustable step-down converter stands as a popular and reliable buck (step-down) voltage regulator module widely employed in electronic projects and power supply designs. This module boasts the capability to drive a 5A load with impressive efficiency, showcasing low ripple and exemplary line and load regulation.

At its core, the XL4005 IC powers this module, offering a 300KHz fixed frequency PWM buck (step-down) DC/DC converter. Featuring internal frequency compensation and a fixed-frequency oscillator, the XL4005's PWM control circuit allows for a linear adjustment of the duty ratio from 0 to 100%. Embedded within are essential functions including an enable function and over-current protection. In the event of short protection, the operation frequency dynamically adjusts from 300KHz to 60KHz. Furthermore, the inclusion of an internal compensation block minimizes the need for external components, simplifying the design.

Operating as a buck converter, the XL4005 module is designed to efficiently step down higher input voltages (ranging from 5V to 32V) to a regulated output voltage within the range of 0.8V to 28V. This feature proves invaluable in scenarios where a stable lower voltage output is imperative. Users benefit from the flexibility to finely adjust the output voltage within this specified range, catering to the precise requirements of diverse applications.

Notably, the module excels in providing stable voltage regulation, ensuring a reliable and unwavering power supply for connected electronic components. With an efficiency rating of 90%, the XL4005 module is engineered for efficient power conversion, effectively minimizing energy losses throughout the voltage conversion process. In essence, the XL4005 DC-DC adjustable step-down converter emerges as a versatile and efficient solution, offering a compact design and advanced features for projects demanding regulated and adjustable power sources.

Applications

• LCD Monitor and LCD TV 
• Digital Photo Frame 
• Set-up Box 
• DIY electronic projects
• Telecom / Networking Equipment

Datasheet

XL4005 DATASHEET

Basics of Buck Converter - සිංහලෙන් ඉගෙනගමු!