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L5101 Datasheet - UTC

L5101, WHITE LED STEP-UP CONVERTER

UNISONIC TECHNOLOGIES CO., LTD L5101 WHITE LED STEP-UP CONVERTER .
The UTC L5101 is a fixed frequency step-up PWM DC/DC converter and designed for white LEDS driving with a constant current to provide backlight in han.
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L5101_UTC.pdf

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Datasheet Details

Part number:

L5101

Manufacturer:

UTC

File Size:

160.57 KB

Description:

WHITE LED STEP-UP CONVERTER

Features

* Built-In Open Circuit Protection
* Built-In Over Voltage Protection
* High Efficiency(Up to 84% at VIN=4.2V, 3 LEDs, ILED =20mA) www. DataSheet4U. com
* 1.2MHz fixed switching frequency
* Low supply current: 70µA
* Matches LED current
* Requires tiny inductor and capacito

Applications

* Capacitor Selection: The small size of ceramic capacitors (1µF input with 1µF output ) are sufficient, X5R and X7R types are recommended Diode Selection: An Schottky diode rated at 100mA ~ 200mA is sufficient for most applications. LED Current Control A feedback resistor (precision 1% recommended)

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