Offline PFC Controller, Boundary Conduction Mode with Harmonic Injection

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Product Description

The MP44011 is a boundary-conduction–mode PFC controller with an internal-harmonic–injection function. It provides simple and high-performance active power-factor correction with minimal external components. Compared against traditional boundary-conduction–mode PFC controllers, the harmonic-injection function makes the part suitable for LED lighting applications. In LED lighting applications with two-stage structures, the harmonic-injection function can effectively reduce bus capacitance between the AC/DC and the DC/DC stage. In addition, harmonic injection can reduce the transformer size to save board space and BOM cost. Also, the benefits of a harmonic-injection function also apply to general boost or flyback PFC applications. The MP44011 is derived from the MP44010, except with a harmonic-injection function. The MP44011 is available in an 8-pin SOIC package.

Product Features

  • Boundary-Conduction–Mode PFC Controller for Pre-Regulation
  • Reduced Bus Capacitance
  • Reduced Transformer Size
  • Internal Harmonic-Injection Function
  • Precise Adjustable-Output Over-Voltage Protection
  • Ultra-Low Start-Up Current
  • Very Low Quiescent Current
  • On-Chip Filter for Current-Sense Pin
  • Disable Function
  • Available in SOIC-8


  • VCC (max) (V)22
  • Iop (mA)1.6
  • Iq (mA)0.46
  • Vac (min) (V)85
  • fsw (max) (kHz)150
  • Vac (max) (V)305
  • Vfb (V)2.5
  • PackageSOIC-8
  • TypeController
  • GradeCatalog
  • Control MethodBoost/Buck Boost
  • Power Range DefinedNo
Quality Policy, Certificates & Reliability Reports
All MPS parts are lead-free, halogen-free and adhere to the RoHS directive. See Environmental section for details.