Power Factor Boost Controller for AC/DC Power Supplies up to 250W and Power Conversion in SSL Lighting

A team of engineers is ready to answer your questions

High PF and Low THD

The iW2206 boost PFC controller provides high power factor (PF > 0.9) and low THD (< 10%) at full load across the input voltage range using Dialog’s PF-Boost™ technology. The device consumes less than 150mW no-load standby power at 230VAC up to 100W of output power, making it ideal for front-end power applications in high-power USB Type-C™ adapters and hubs in solid state lighting, where the front-end converter is always on.

The iW2206 integrates a full range of protection features including output over-voltage, over-power, input over-voltage and under-voltage, over-current and sense resistor short circuit protection, open loop and over temperature protection. The device comes in a tiny SOT23-6 package, enabling a smaller total solution size.


  • PFC Boost Controller in SOT23-6
  • PF > 0.9 and THD < 10% @ Full load Across Input Voltage
  • 250W Maximum Output Power
  • Supports Wide AC Input Voltage – 90VAC to 305VAC with Tight AC Load and Line Regulation (±3%)
  • Fast PFC Ready Time < 0.2s
  • Standby Power - < 150mW at 100W and Input Voltage of 230VAC
  • Shut Down Function
    • Pull Down VFB Pin for Lower Standby Power
  • Fully Protected
    • Output Over-Voltage, Over-Power, Over-Current, Sense-Resistor Short Protections
    • Input Voltage Under-Voltage and Over-Voltage Protection
    • Built-In Over-Temperature Protection
    • Open Loop Protection


  • High-Power USB Type-C™ Adapters and Hubs
  • Commercial Lighting: External Fixture Drivers

Block Diagrams

Typical Applications Diagram
Functional Block Diagram


Product Briefs and Summaries
Date Version
iW2206 Product Summary 31/01/2020 Rev. 0.5
iW2206 Product Summary (Chinese) 30/01/2020 Rev. 0.1

For technical support or information on how to buy, contact us directly.

Request Samples Contact Us Register for newsletter

Need technical help?

Visit our support web site to:

  • Get help from Dialog experts online.
  • Search the forums.
  • Access software, drivers, tools & utilities.