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LN5121

Step-up DC/DC Converter - Backlight Driver

LN5121 Features

* Input voltage range : 2.5V

* 6V

* Output voltage range : up to 15V externally set-up reference voltage 0.2V

* Oscillation frequency : 1.0MHZ±20%

* On resistance : 2.0Ω

* Efficiency : 88%(When driving 3 white LEDs in series VIN=3.6V ILED=20mA)

* Control : PWM control

LN5121 General Description

The LN5121 Series is a fixed frequency, constant current step-up DC/DC converter ideal for driving LEDs used in backlighting applications on cellular phones, PDAs and digital cameras etc. Output voltage of up to 15V can be derived, and from a 2.5V input three white Led’s cab be driven in series. Lum.

LN5121 Datasheet (235.68 KB)

Preview of LN5121 PDF

Datasheet Details

Part number:

LN5121

Manufacturer:

natlinear

File Size:

235.68 KB

Description:

Step-up dc/dc converter - backlight driver.

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LN5121 Step-up Converter Backlight Driver natlinear

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