Download RT4503A Datasheet PDF
RT4503A datasheet preview
RT4503A page 2
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RT4503A page 3
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RT4503A Key Features

  • 2.5V to 5.5V Input Voltage Range
  • 36V Open LED Protection for 10 WLEDs
  • Pulse Dimming Brightness Control
  • 200mV Reference Voltage with ±2% Accuracy
  • 550kHz Switching Frequency
  • Built-In Soft-Start
  • Over-Temperature Protection
  • Internal pensation
  • Current Limit
  • P pin for RT4503 only

RT4503A Description

The RT4503/A is a highly integrated LED driver IC capable of driving 10 WLEDs in series. It is posed of a current mode Boost converter integrated with a 36V/1.2A power switch. The RT4503/A supports a wide input voltage range from 2.5V to 5.5V and runs at a fixed frequency of 550kHz.