In the past decade, solid state lighting devices have gained popularity. High brightness LEDs are
finding their way into a wide range of applications. High power capacity multi-chip LED devices
now often require higher LED driving current than peviously.
The ZXLD1320 is a buck LED driver IC with built in 2A bipolar power switch which is capable of
driving high power LED with constant LED current up to 1.5A. Higher LED driving current can be
achieved with additional external power switch.
The following are design examples of two 2.8A constant current LED driver circuits which are
capable to drive multi-chip LED devices likes the Cree XLamp MC-E or the Seoul Semiconductor
Z-Power P7 .