Information

POWER SOLUTIONS

POWER

MEDIUM VOLTAGE

Medium Voltage ICs

Medium voltage ICs deliver the power for driving Luxeon for input voltages of 12V to 48V.

These solutions are commonly integrated in automotive, industrial, and military applica-

tions.

There are three types of medium voltage ICs. First, the Boost Regulator ICs are used

when the input voltage is lower than the forward voltage of Luxeon. Second, the Buck

Regulator ICs efficiently reduce the input voltage and regulate the current for driving

Luxeon. Third, the LDO (Low Dropout voltage regulator) is a linear regulator that is used

when the input voltage is greater than the forward voltage of the Luxeon. It is a lower cost,

but less efficient solution than the Buck Regulator, and is appropriate when the difference

between the input voltage and LED forward voltage is small.

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.

For more information visit

www.FutureElectronics.com/Lumileds

Part Number Type V

out

Solutions Suggested

(max) (max) Partner Luxeon

SPX2941 LDO 4-16V 3-15V 1A Sipex I

SPX29152 LDO 4-16V 3-15V 1.5A Sipex III/V

SPX29302 LDO 4-16V 3-15V 3A Sipex III/V

SP6132 Buck 5-15V 3-15V External Sipex I/III/V

SP6137 Buck 5-15V 3-15V External Sipex I/III/V

NUD4001 LDO 12V 11V 0.4A On Semi I

MC33269 LDO 12V 11V 0.8A On Semi I/V

CS51411 Buck 4.5-40V 35V 1.5A On Semi I/III/V

MC34063A Buck/ Boost 3-40V 40V 1.5A On Semi I/III/V

NCV33163 Buck/ Boost 2.5-60V 60V 2A On Semi I/III/V

MIC4690 Buck 4-30V 1.25-30V 1.3A Micrel I/III/V

MIC4684 Buck 4-30V 1.25-30V 1.5A Micrel I/III/V

MIC4685 Buck 4-30V 1.25-30V 3A Micrel I/III/V