The LED driver IC is focused on effectively driving and controlling the LED, which is usually used in the backlight unit (LCD TV, Monitor). The SEMCO LED Driver IC provides a high contrast ratio through the DC - DC conversion and dimming control.
Depending on the controlling method, it either supports the linear type or the switching type topology.
Reference Site : http://monitor.espec.ws/section31/printview242752.html
If you have some information on related parts, please share useful information by adding links below.