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LN9305

Part Number	LN9305
Manufacturer	natlinear
Description	5 Channel Low Dropout Current Source
Published	Dec 4, 2018
Detailed Description	5 Channel Low Dropout Current Source LN9305 ■ General Description The LN9305 low-dropout bias supply for white LEDs is...
Datasheet	LN9305 PDF File

Overview

5 Channel Low Dropout Current Source LN9305 ■ General Description The LN9305 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs.
The LN9305 uses a internal resistor to set the bias current for five LEDs, which are matched to 3%.
The LN9305's advantages over ballast resistors include much lower bias variation with supply voltage variation, significantly lower dropout voltage, and in some applications, significantly improved efficiency.
The LN9305 requires a 60mV dropout at a 20mA load on each output to match the LED brightness.
The LN9305 is suitable for single cell Li-ion battery power device that using low forward voltage white LEDs.
The white LEDs can be powered directly from battery without extra external components.
This takes an advantage of highest efficiency and creates no EMI problem.
■ Ordering Information LN9305 ①②③ (Eg: LN9305SRG) Item ① ② ③ ■ Typical Application...

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