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YOBON TECHNOLOGIES
YOBON TECHNOLOGIES


YB1303

Low Dropout LED Driver



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YB1303 pdf
YB1303
Low Dropout LED Driver
Description
The YB1303 provides a simple solution for
driving three channels of any color LEDs
with current matching ability. The ultra low
dropout LED driver features higher peak
efficiency and very low shutdown current.
The LED current can be adjusted by an
external resistor or the control voltage. The
YB1303 can work independently or
combine with any boost converters which
need to have current matching function for
LED drivers. The YB1303 is available in
6-pin tiny SC70-6 package.
Features
„ LED Drivers for Parallel Connected
LEDs
„ Only One External Resistor is Needed
„ PWM and Analog Brightness Control
„ No EMI and Switching Noise
„ Power Saving Shutdown Mode (<0.1μA)
„ Small Footprint SC70-6 Package
Applications
„ LCD Display Modules
„ Keyboard Backlight
„ PDA, DSC, MP3 players
„ LED Displays
„ Handheld Computers
„ Cell Phones
Typical Application Circuit
YB1303 Rev.1.0
Figure 1: Typical Application Circuit
www.yobon.com.tw
1



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Pin Configuration
YB1303
Low Dropout LED Driver
CTR 1
LED2 2
LED1 3
6 EN
5 LED3
4 GND
SC70-6
Figure 2: Pin Configuration
Pin Assignment &Description
Table 1
Pin
Name
Description
1 CTR Connect this pin with a resistor to set the LED current.
2 LED2 Connect this pin to LED cathode.
3 LED1 Connect this pin to LED cathode.
4 GND Ground pin.
5 LED3 Connect this pin to LED cathode.
6
EN
Connect this pin to logic high to enable this chip, logic low to
disable this chip.
Ordering Information
Table 2
Order Number
Package Type
YB1303SC76A
SC70-6
Supplied As
3000 Units Tape & Reel
Package Marking
Please contact sales
representative
YB1303 Rev.1.0
www.yobon.com.tw
2



Part Number YB1303
Description Low Dropout LED Driver
Maker YOBON TECHNOLOGIES - YOBON TECHNOLOGIES
Total Page 8 Pages
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