LN2117 Step-up DC/DC Converter - Backlight Driver

Description

Step-up DC/DC Converter *Backlight Driver LN2117 * General .
The LN2117 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular.

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Datasheet Specifications

Part number: LN2117
Manufacturer: natlinear
File Size: 316.11 KB
Datasheet: LN2117-natlinear.pdf
Description: Step-up DC/DC Converter - Backlight Driver

Features

* Input voltage range 2.5V
* 6V
* Output voltage range up to 20V
* Oscillation frequency 1MHz±20%
* Efficiency 88%(When driving 3 white LEDs in series VIN=3.6V ILED=20mA)
* Control PWM control
* Stand-by Current ISTB=1.0uA(MAX)
* Load capacitor 0.22u

Applications

* on cellular phones, PDAs and digital cameras etc. Output voltage of up to 20V can be derived, and from a 3.2V input four white Led’s cab be driven in series or alternatively, using a 3.0V input, a network of six LEDs may be driven. Luminance of the LED’s is controlled by changing the duty cycle of a

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LN2117 Step-up Converter Backlight Driver natlinear

natlinear LN2117-like datasheet