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RT4533A - Asynchronous Boost Converter

Download the RT4533A datasheet PDF. This datasheet also covers the RT4533 variant, as both devices belong to the same asynchronous boost converter family and are provided as variant models within a single manufacturer datasheet.

General Description

The RT4533/A is a highly integrated LED driver IC capable of driving 10 WLEDs in series.

It is composed of a current mode Boost converter integrated with a 36.5V/1.2A power switch.

The RT4533/A supports a wide input voltage range from 2.5V to 5.5V and runs at a fixed frequency of 1.1MHz.

Key Features

  • 2.5V to 5.5V Input Voltage Range.
  • 36.5V Open LED Protection for 10 WLEDs.
  • PWM Dimming Brightness Control.
  • 200mV / 300mV Reference Voltage with ±2% Accuracy.
  • 1.1MHz Switching Frequency.
  • Built-In Soft-Start.
  • Over-Temperature Protection.
  • Internal Compensation.
  • Current Limit.
  • RoHS Compliant and Halogen Free Ordering Information RT4533/A Package Type J6 : TSOT-23-6 Lead Plating System G : Green (Halogen Free and Pb Free) Note : Feedback Voltage R.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (RT4533-Richtek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number RT4533A
Manufacturer Richtek
File Size 144.21 KB
Description Asynchronous Boost Converter
Datasheet download datasheet RT4533A Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
® RT4533/A Asynchronous Boost Converter for 10 WLEDs General Description The RT4533/A is a highly integrated LED driver IC capable of driving 10 WLEDs in series. It is composed of a current mode Boost converter integrated with a 36.5V/1.2A power switch. The RT4533/A supports a wide input voltage range from 2.5V to 5.5V and runs at a fixed frequency of 1.1MHz. The LED current is set via an external resistor and the feedback voltage is regulated to 200mV / 300mV. For brightness dimming, the RT4533/A supports PWM dimming which determines the feedback reference voltage. Applications  Cellular Phones  Digital Cameras  Probable Instruments Marking Information RT4533GJ6 0R=DNN 0R= : Product Code DNN : Date Code RT4533AGJ6 1L=DNN 1L= : Product Code DNN : Date Code Features  2.5V to 5.