RT9301 Datasheet, PDF (1/9 Pages) Richtek Technology Corporation – 3-Channel Low Dropout RGB LED Driver

RT9301
3-Channel Low Dropout RGB LED Driver
General Description
The RT9301 is a 3-Channel current source driver for RGB
LED. It is easy to be designed in applications that need
mixing RGB light source for multi-color output.
The RT9301 also provide users with great flexibility and
device performance. It uses a external resistor to set the
bias current for three LEDs, which are matched to 3%.
Users can adjust the output current from 2mA to 50mA by
setting the ISET resistor.
The RT9301 features very low dropout and under voltage
lockout protection. It is available in a space-saving TSOT-
23-8 package.
Ordering Information
RT9301
Package Type
J8 : TSOT-23-8
Operating Temperature Range
P : Pb Free with Commercial Standard
G : Green (Halogen Free with Commer-
cial Standard)
Note :
RichTek Pb-free and Green 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.
`100%matte tin (Sn) plating.
Features
z Input Voltage Range : 2.8V to 5.5V
z Low 60/45mV Dropout at 20/15mA
z Individual Current Setting by External Resistor
z Individual On/Off Control by Baseband MPU
z Up to 50mA LED Bias Current
z Simple LED Brightness Control
z 3% LED Current Matching
z Low 0.1uA Shutdown Current
z UVLO Protection
z Tiny TSOT-23-8 Package
Applications
z Mobile phone, Smart Phone Multi-color LED Backlight
z Camera Flash White LED
z LCDDisplay Modules
z Keypad Backlight
Pin Configurations
(TOP VIEW)
8765
1 23 4
Marking Information
For marking information, contact our sales representative
directly or through a RichTek distributor located in your
area, otherwise visit our website for detail.
TSOT-23-8
Note : There is no pin1 indicator on top mark for TSOT-23-8
type, and pin 1 will be lower left pin when reading top mark
from left to right.
DS9301-02 March 2007
www.richtek.com
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