Six-channel boost LED driver for LCD backlight panels
The Texas Instruments LP8556TME-E02/NOPB is a DC-DC boost regulator for backlight applications, driving up to six LED strings at 25mA per channel. It integrates the switching FET internally (step-up topology) and supports PWM dimming for brightness control. The output voltage range of 16V to 30V covers the typical forward voltage of multi-LED series strings in notebook and monitor panels. Switching frequency is programmable to 312kHz, 625kHz, or 1250kHz, letting the designer optimise inductor size versus switching losses.
Lifecycle status and sourcing posture
The LP8556TME-E02/NOPB is listed as Active and ROHS3 compliant.
