XL2576S-3.3 SMD 3.3V Step-Down Voltage Regulator IC

XL2576S‑3.3 SMD Step‑Down Voltage Regulator IC – 3.3 V, TO‑263

Technical Details

• Part Number: XL2576S‑3.3
• Output Voltage: Fixed 3.3 V
• Input Voltage Range: 4.75 V to 40 V
• Output Current: Up to 3 A
• Efficiency: Up to 75–80% (typical)
• Switching Frequency: ~52 kHz (fixed)
• Dropout Voltage: Low dropout switching design
• Internal Thermal Shutdown and Current Limit Protection
• Package: TO‑263‑5L (SMD)

Features

• Fixed 3.3 V output step-down regulator
• Wide input range up to 40 V
• Thermal overload and short-circuit protection
• High efficiency with minimal external components
• Standard TO‑263 surface-mount package for easy PCB use

Applications

• 3.3 V logic supply for microcontrollers or sensors
• Battery-powered systems and portable electronics
• Power conversion in industrial and embedded systems
• Automotive electronics and LED drivers
• Low-voltage regulated supply from 12 V/24 V input

Physical Attributes

• Package Type: TO‑263‑5L (SMD)
• Dimensions: ~10.1 mm × 9.5 mm × 4.5 mm (L × W × H)
• Weight: ~1.2 g
• Mounting Type: Surface Mount (SMD)

Package Includes

• 1 × XL2576S‑3.3 Step‑Down Voltage Regulator IC