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Silergy SY20611 Synchronous Step Down Regulator

Silergy SY20611 Synchronous Step Down Regulator is a high-efficiency 3MHz frequency, 1.2A converter that integrates an inductor and a control IC in a compact QFN2.5x2-8 package. This regulator features a 2.5V to 5.5V input voltage range, 230mΩ/150mΩ low RDS(ON) for internal switches (top/bottom), and 100% dropout operation. The SY20611 synchronous step-down regulator integrates an inductor to minimize the external components and PCB layout design. This regulator includes internal soft-start limits for the inrush current and output auto discharge function. The SY20611 step-down regulator is RoHS-compliant and halogen-free. Typical applications include mobile phones, smartphones, BLUETOOTH® headsets, WiMAX PDA, MID, UMPC, portable game consoles, digital cameras, and camcorders.

Features

  • 230mΩ/150mΩ low RDS(ON) for internal switches (top/bottom)
  • Integrate an inductor to minimize the external components and PCB layout design
  • 2.5V to 5.5V input voltage range
  • 1.2A continuous output current capability
  • 3MHz high switching frequency minimizes the external components
  • Internal soft-start limits the inrush current
  • 100% dropout operation
  • RoHS compliant
  • Halogen free
  • Output auto discharge function
  • QFN2.5×2-8 compact package
  • 2.5mm x 2mm x 1.15mm dimensions

Applications

  • Mobile phone and smartphone
  • Bluetooth headsets
  • WiMAX PDA, MID, and UMPC
  • Portable game console
  • Digital camera and camcorder

Block Diagram

Block Diagram - Silergy SY20611 Synchronous Step Down Regulator

Typical Application Circuit Diagram

Application Circuit Diagram - Silergy SY20611 Synchronous Step Down Regulator

Schematic Diagram

Schematic - Silergy SY20611 Synchronous Step Down Regulator
Published: 2024-12-30 | Updated: 2025-01-14