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    SD4948C is a DC-DC converter controller with built-in high-current MOSFETs, which can be used in buck, buck-boost, and flyback power systems. 

    The SD4948C has a built-in high-voltage power supply function for fast start-up and an adaptive frequency reduction function to optimize the conversion efficiency at light load. Built-in frequency jitter function to optimize EMI.

    SD4948C integrates various protections, including: cycle-by-cycle peak current protection, VDD overvoltage protection, undervoltage protection, output overload protection, output overvoltage protection, overtemperature protection, etc.


Main feature
  • 20V~150V input voltage

  • Adjustable output voltage

  • High-voltage startup

  • Frequency reduction at light load condition

  • Cycle-by-cycle peak current protection

  • VDD overvoltage/undervoltage protection

  • Output overvoltage protection

  • Lead edge blanking

  • Output overload/shortcircuit protection

  • Over temperature protection


Ordering Information
Product Name Package form Marking Hazardous Substance Control Packing Type Remarks
SD4948C ESOP-8-225-1.27 SD4948C Halogen free Tube
SD4948CTR ESOP-8-225-1.27 SD4948C Halogen free Tape & Reel
Block Diagram

SD4948C.png

Documents
title Types of Size (KB) date Download the latest English version
SD4948C 0 1970-01-01 SD4948C Brief Datasheet