Download RT8474A Datasheet PDF
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RT8474A Key Features

  • High Voltage : VIN Up to 50V, VOUT Up to 50V
  • Support Multiple-Topologies (Buck / Boost / Buck
  • Built-In 2A Power Switch
  • Current-Mode PWM Control
  • 500kHz Fixed Switching Frequency
  • Analog or PWM Control Signal for LED Dimming
  • Internal Soft-Start to Avoid Inrush Current
  • Under-Voltage Lockout
  • Thermal Shutdown
  • RoHS pliant and Halogen Free

RT8474A Description

The RT8474A is a current-mode LED driver supporting wide input voltage range from 4.5V to 50V in multiple topologies. With the internal 500kHz operating frequency, the size of the external PWM inductor and input/output capacitors can be minimized. High efficiency is achieved by a 100mV current sensing control.