XL2576S-ADJE1 Adjustable 3A Buck Converter IC – 52kHz – TO-263-5 – XLSEMI

The XL2576S-ADJE1 from XLSEMI is a high-efficiency adjustable-output buck (step-down) DC/DC converterdesigned to provide up to 3A of continuous output current. Operating at a fixed 52 kHz switching frequency, this regulator offers stable and reliable performance with minimal external components, making it suitable for a wide variety of power supply applications.

With an adjustable output voltage range from 1.23V to 37V, configured using two external feedback resistors, the XL2576S-ADJE1 can be used to generate custom voltage rails for microcontroller systems, battery chargers, LED drivers, motor controllers, and general-purpose DC conversions. Supporting a wide 4.5V to 40V input voltage range, it is ideal for both low-voltage and high-voltage DC sources.

Efficiency typically ranges from 75% to 90%, depending on input/output conditions, helping reduce heat and improve overall system performance. Built-in thermal shutdown and current limiting protection provide enhanced safety and long-term reliability. The E1 suffix indicates that the device is Pb-free and RoHS compliant.

Packaged in a TO-263-5 SMD format, the XL2576S-ADJE1 is suitable for compact, surface-mount power supply designs.

Key Specifications:

• Manufacturer: XLSEMI

• Part Number: XL2576S-ADJE1

• Function: Adjustable step-down (buck) DC/DC converter

• Output Voltage: Adjustable from 1.23V to 37V

• Max Output Current: 3A continuous

• Input Voltage Range: 4.5V to 40V

• Switching Frequency: 52 kHz

• Efficiency: 75% to 90% (typical)

• Protection Features:
  – Thermal shutdown
  – Current limiting
  – Short-circuit protection

• Package: TO-263-5 (SMD)

Package Includes:
1 x XL2576S-ADJE1 Adjustable Buck Converter IC

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