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SGM3127

Part Number	SGM3127
Manufacturer	Shengbang Microelectronics
Description	White LED Driver
Published	May 17, 2016
Detailed Description	SGM3127 White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3127 low-dropout bias supply for wh...
Datasheet	SGM3127 PDF File

Overview

SGM3127 White LED Driver with Low Dropout Current Source GENERAL DESCRIPTION The SGM3127 low-dropout bias supply for white LEDs is a high-performance alternative to the simple ballast resistors used in conventional white LED designs.
It is optimized for low power keypad and portable backlighting applications.
The SGM3127 uses an internal resistor to set the bias current for four LEDs, which are matched to ±5%.
The SGM3127'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 SGM3127 requires only a 50mV dropout voltage at a 30mA load on each ou...

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