Power Chips XL4005

Product Short Description

The TDSEMIC XL4005-TD is a high-current, cost-effective monolithic step-down (buck) DC-DC converter IC capable of delivering up to 5 A continuous output current. It features an integrated high-side power MOSFET, wide input voltage range, and adjustable output, making it a popular choice for medium- to high-current applications requiring simple, efficient voltage conversion with minimal external components.

Key Specifications:

• Brand: TDSEMIC
• Part Number: XL4005-TD
• Commodity Code: C50675574
• Topology: Non-synchronous buck (step-down)
• Input Voltage Range: 5 V to 32 V
• Output Voltage Range: 0.8 V to 30 V (adjustable via external feedback divider)
• Output Current: up to 5 A (continuous, depending on thermal design and VIN–VOUT differential)
• Integrated Switch: Built-in high-current N-MOSFET
• Protection Features: Current limiting, thermal shutdown
• Package: TO-263-5 / TO-220-5 (depending on exact variant; commonly TO-263 for surface-mount)
• Packaging: Tape & Reel
• Operating Junction Temperature: –40 °C to +125 °C (TJ)

Typical Applications:

• 12 V / 24 V industrial and automotive power supplies
• High-current point-of-load (POL) regulation
• LED drivers (constant-current mode with external sense)
• Battery chargers and power adapters
• Embedded systems, routers, set-top boxes, and consumer electronics
• General-purpose wide-input buck conversion requiring 3–5 A capability

The XL4005-TD is a widely adopted, reliable, and low-cost 5 A buck converter solution, offering good efficiency, excellent thermal performance in TO-263 packaging, and broad compatibility for DIY, industrial, and volume-production designs needing adjustable output from 5–32 V input rails.