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The AR2003 is Active/Synchronous Rectification Controller, providing output voltage from 4.5V to 20V. Using internal drain-to-source voltage sensing, the AR2003 is ideal for Flyback, LLC-resonant and other power supply architectures. By using SFB pin, output voltage can be changed dynamically by changing the Output Voltage Control pin’s level.



  • AC/DC Battery Charger
  • Flyback Conversion
  • PC Power Supply
  • SMPS


  • Wide working range 5~20V
  • Optimized for Resonant operation up to 600kHz
  • Suitable for DCM, CCM, CrCM in Fly-back operation
  • Minimum on-time and off-time to reduce turn-on/off oscillations
  • Light Load Detection (LLD) for sleep mode
  • Drain voltage rating of 200V
  • Low component count
  • Low Quiescent Current at 36µA (typ.)

Product Specifications

Product Parameters

Qualified to AECQ10x No
Automotive Compliant PPAP No
Supply Voltage VCC 4.5 V
Quiescent Current 1.2 mA
Drain Voltage VD 200 V
Mode of Operation CCM DCM QR
Switching Frequency 600 kHz
Proportional Gate Drive Control Yes
Turn-On Time TON 30 ns
Turn-Off Threshold Voltage 3 mV
Turn-Off Delay Time TOFF 30 ns
Gate Source Current ISOURCE 1.5 A
Gate Sink Current ISINK 1.2 A

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Orderable Part Number Authorized Distributor Quantity Inventory Date Buy Online Region
AR2003FV-13 Digi-Key Electronics 2976 8/8/2020 Buy Now United States


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