WHITE LED STEP-UP
CONVERTER
DCRIPTION
The UTC L5100 is a STEP-UP DC/DC Converter and
digned for driving white LEDs with a constant current. It can drive
several LEDs in seri by a Li-Ion cell. UTC L5100 switch at a
high frequency 1.2MHz, so it can allow the use of tiny external
components. The output capacitor can be as all as 0.22μF; saving
space and cost compare with alternative other solutions. The low
95mV feedback voltage minimiz power loss in the current setting
ristor can have better efficiency.
FEATUR
* Inherently Matched LED Current
* High Efficiency: 83% Tical
* Driv Up to Four LEDs from a 3.2V Supply
* Driv Up to Six LEDs from a 5V Supply
* 36V Rugged Bipolar Switch
* 1.2MHz Switching Frequency
* Us Tiny 1mm Tall Inductors
* Output Capacitor can be all to only 0.22μF
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