XL2576S-5.0E1 5V 3A Buck Converter IC – TO-263-5 – XLSEMI

The XL2576S-5.0E1 from XLSEMI is a high-efficiency 5V fixed-output buck (step-down) DC/DC convertercapable of delivering up to 3A continuous output current. Designed for reliable power conversion in embedded systems, the IC integrates switching control, protection circuitry, and high-current capability within a compact TO-263-5 SMD package.

Supporting a wide 4.5V to 40V input range, the XL2576S-5.0E1 is suitable for automotive, industrial, battery-powered, and general-purpose DC power systems. Its fixed 52 kHz switching frequency provides stable regulation while simplifying external component selection. With efficiency levels up to 95%, this device helps minimize heat generation and power loss.

Built-in thermal shutdown and current-limit protection enhance safety and reliability, making the XL2576S-5.0E1 an excellent drop-in solution for linear regulator replacements and efficient 5V power rails. The E1 suffix indicates Pb-free, RoHS-compliant manufacturing.

Key Specifications:

• Manufacturer: XLSEMI

• Part Number: XL2576S-5.0E1

• Function: Step-down (buck) DC/DC converter

• Output Voltage: Fixed 5V

• Max Output Current: 3A

• Input Voltage: 4.5V to 40V

• Switching Frequency: 52 kHz

• Efficiency: Up to 95%

• Protection:
  – Thermal shutdown
  – Current limiting

• Package: TO-263-5 (SMD, surface-mount)

Package Includes:
1 x XL2576S-5.0E1 5V Buck Converter IC

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