Unisonic Technologies L5100
L5100 is a STEP-UP DC/DC Converter and designed for driving white LEDs with a constant current. It can drive several LEDs in series by a Li-Ion cell. The output capacitor can be as small as 0.22μF; saving space and cost compare with alternative other solutions.| Part No. | L5100 |
|---|---|
| Datasheet | L5100 Download |
| Manufacturer |  Unisonic Technologies |
| Description | WHITE LED STEP-UP CONVERTER |
| Buy | Stock & Price |
DESCRIPTION
The UTC UTC L5100 switches at a high frequency 1.2MHz, so it can allow the use of tiny external components. The low 95mV feedback voltage minimizes power loss in the current setting resistor can have better efficiency.●
FEATURES
* Inherently Matched LED Current * High Efficiency: 83% Typical * Drives Up to Four LEDs from a 3.2V Supply * Drives Up to Six LEDs from a 5V Supply * 36V Rugged Bipolar Switch * 1.2MHz Switching Frequency * Uses Tiny 1mm Tall Inductors * Output Capacitor can be Small to only 0.22μF● ORDERING INFORMATION Ordering Number L5100G-AF5-R Package SOT-25 Packing Tape Reel
● MARKING Copyright © 2015 Unisonic Technologies Co., Ltd 1 of 6 QW-R103-024.F L5100
● PIN CONFIGURATION LINEAR INTEGRATED CIRCUIT
● PIN
DESCRIPTION
PIN NO. 1 2 3 4 5 PIN NAME SW GND FB SHDN VINDESCRIPTION
Switch. Connect inductor/diode here. Minimize trace area at this pin to reduce EMI. Ground. Connect directly to local ground plane. Feedback. Reference voltage is 95mV. Connect cathode of lowest LED and resistor here.
