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LN2118

natlinear
Part Number LN2118
Manufacturer natlinear
Description Step-up DC/DC Converter - Backlight Driver
Published Dec 4, 2018
Detailed Description Step-up DC/DC Converter —Backlight Driver LN2118 ■ General Description The LN2118 Series is a fixed frequency, constan...
Datasheet PDF File LN2118 PDF File

LN2118
LN2118

Overview
Step-up DC/DC Converter —Backlight Driver LN2118 ■ General Description The LN2118 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on Car GPS screen and digital cameras etc.
Output voltage of up to 26V can be derived, and from a 3.
6V input four white Led’s cab be driven in series or alternatively, using a 3.
6V input, a network of seven parallel legs with three in each may be driven.
Luminance of the LED’s is controlled by changing the duty cycle of a PWM signal applied to the CE pin.
In addition, an internal MOSFET with an RDS-on of 2Ω is used.
Allow profile and small board area solution can be achieved using a chip coil and an ultra small ceramic output capacitor (CL) of 0.
22uF.
■ Applications  Car GPS screen ■ Features  Input voltage range  Output voltage range 2.
7V—6.
0V up to 26V externally set-up reference voltage 0.
2V  Oscillation frequency 1.
0MHz±20%  Efficienc...


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