Information
POWER SOLUTIONS
23
POWER
LOW VOLTAGE
IC
S
Low Voltage ICs
Low voltage ICs provide the necessary power to drive Luxeon from input voltages of 6V
and under. These solutions are ideal for portable applications such as flashlights, head-
lamps and bicycle lights.
There are two types of low voltages ICs. First, the Boost Regulator ICs are used when the
input voltage is lower than the forward voltage of the Luxeon LED. Second, the Buck
Regulator ICs efficiently reduce the input voltage and regulate the current for driving
Luxeon.
Reference designs and evaluation boards are available to test the performance of the
various solutions. Please contact Future Electronics for more information or visit
www.futureelectronics.com/lumileds.
Call NOW to order!
Americas: 1-888-LUXEON2
Europe: 00-800-44FUTURE
Asia: +800-LUMILEDS
Part Number Type V
in
V
out
I
out
Solutions Suggested
(max) (max) Partner Luxeon
SP6652 Buck 2.7-5.5V 5V 1A Sipex I/III
SP6641B Boost 1-5V 6V 0.5A Sipex I
SP6648 Boost 0.7-4.5V 4V 0.4A Sipex I
SP6682 Boost 2.7-5.5V External External Sipex I/V
NCP1421 Boost 1-5V 5V 0.6A On Semi I
CS5171 Buck/Boost 2.7-30V >30V 1.5A On Semi I
NCP1442 Boost 2.7-30V >30V 4A On Semi III/V
NCP1450 Boost 1-6V 5V External On Semi III
MIC2196 Boost 2.9-14V External External Micrel V
MIC2288 Boost 2.5-10V 34V 0.5A Micrel I