LND1937 Datasheet, PDF (1/1 Pages) Linear Dimensions Semiconductor – 36V BOOST DC/DC LED DRIVER

DATA SHEET
D
GENERAL DESCRIPTION
The LND1937 is a boost DC/DC LED Driver
with internal 36V internal switch packaged in a
space saving SOT23-5 package.
The LND1937 is all that is required to boost
from supplies as low as 2.5V to a string of
LEDs with a combined forward voltage of as
much as 36V.
The LND1937 bipolar switch can handle up to
100mA, and switches at 1.2MHz allowing an
extremely small inductor to be used. The
device uses a low 95mV feedback voltage
maximizing efficiency & includes a shutdown
feature.
The LND1937 operates over a Tj=-40 to 125C
temperature range.
TYPICAL APPLICATION
LND1937
36V BOOST DC/DC LED DRIVER
FEATURES
 High Efficiency
 Low Cost
 Drives up to 36V Vf of LEDs
 Internal Bipolar Switch
 2.5V to 10V Input
 Up to 36V Output
 1.2MHz Switching Frequency
Minimizes Inductor Sizes
EFFICIENCY
PACKAGE
APPLICATIONS
 Cellular Phone Backlights
 PDAs, Handheld Computers
 Digital Cameras
 MP3 Players
 GPS Receivers
 Linear Dimensions Semiconductor Inc.  22620 Ricardo Rd, Cupertino CA 95014 USA  tel [phone]  fax [phone]  www.lineardimensions.com 