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AP3983R Description

Pin Assignments The AP3983R is a power switcher for power supplies with better conversion efficiency, better voltage & current accuracy, and improved protection functions. Typical applications include chargers and adapters. The AP3983R with built-in MOSFET, regulates the output voltage and current in the primary side by piecewise Pulse Frequency Modulation (p-PFM) in discontinuous conduction mode (DCM).

AP3983R Key Features

  • Built-in N Channel MOSFET with 700 BVDSS
  • Less than 75mW Standby Power Consumption
  • Meet Efficiency Requirement of COC Trier 2
  • Valley Turn-on to Reduce Switching Loss and Improve EMI
  • Piecewise Frequency Reduction to Enhance Conversion
  • Overvoltage Protection (OVP)
  • Over-Temperature Protection (OTP)
  • Short Circuit Protection (SCP) with Hiccup
  • Totally Lead-Free & Fully RoHS pliant (Notes 1 & 2)
  • Halogen and Antimony Free. “Green” Device (Note 3)