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RT4533A

Richtek
Part Number RT4533A
Manufacturer Richtek
Description Asynchronous Boost Converter
Published Mar 19, 2020
Detailed Description ® RT4533/A Asynchronous Boost Converter for 10 WLEDs General Description The RT4533/A is a highly integrated LED drive...
Datasheet PDF File RT4533A PDF File

RT4533A
RT4533A

Overview
® 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.
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 RT4533 : 200mV RT4533A : 300mV Richtek products are :  RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.
 Suitable for use in SnPb or Pb-free soldering processes.
Simplified Application Circuit VIN Enable LD LX VIN VOUT RT4533/A EN GND FB … VOUT Copyright ©2015 Richtek Technology Corporation.
All rights reserved.
DS4533/A-02 September 2015 is a registered trademark of Richtek Technology Corporation.
www.
richtek.
com 1 RT4533/A Pin Configurations (TOP VIEW) VIN VOUT EN 654 23 LX GND FB TSOT-23-6 Functional Pin Description Pin No.
Pin Name Pin Function 1 LX Switch Node.
2 GND Ground.
3 FB Feedback Voltage Input.
Put a resistor to GND to setting the current.
4 EN Enable Control Input...


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