SGM3128 Datasheet, PDF (1/10 Pages) SG Micro Corp – 3-Channel LowDropout Low Side White LED Driver

SGM3128
3-Channel Low Dropout
Low Side White LED Driver
GENERAL DESCRIPTION
The SGM3128 driver provides a simple solution for a
matched current source for common Anode LED
configuration.
The SGM3128 can drive three LEDs or one LED at
three times the current. The factory preset current
value is 30mA per channel.
The SGM3128 requires only a 50mV dropout voltage at
a 30mA load on each output to match the LED
brightness.
The SGM3128 is available in Green SOT-23-6 package.
It operates over an ambient temperature range of -40℃ to
+85℃.
APPLICATIONS
Wireless Handsets
MP3, MP4, and PMP
Cellular Phones
Portable Communication Devices
Digital Cameras, Camcorders
PDAs, Palmtops, and Handy Terminals
LED/Display Back Light Driver
LEDs for Camera Flash
Battery-Powered Equipment
FEATURES
● Support up to 3 LEDs
● Low 50mV Dropout at 30mA
● Less than ±5% LED Current Matching
● Simple LED Brightness Control
● Low Shutdown Current
● 2.5V to 5.5V Supply Voltage Range
● Low EMI and Switching Noise
● Enable/Shutdown Control
● Operating Temperature Range: -40℃ to +85℃
● Available in Green SOT-23-6 Package
TYPICAL APPLICATION
V_IN
C_IN
0.1µF
LED1 LED2 LED3
V_CC
SGM3128
PWM
EN
GND
SG Micro Corp
www.sg-micro.com
REV. A. 2