The ISL97650B represents a high power, integrated LCDsupply IC targeted at large panel LCD displays. TheISL97650B integrates a high power, 3.2A boost converter forAVDD generation, an integrated VON charge pump, a VOFFcharge pump driver, VON slicing circuitry and a buckregulator with 2A switch for logic generation.The ISL97650B has been designed for ease of layout andlow BOM cost. Supply sequencing is integrated for bothAVDD -> VOFF -> VON and AVDD/VOFF -> VON sequences.The TFT power sequence uses a separate enable to thelogic buck regulator for maximum flexibility.Peak efficiencies are >90% for both the boost and buck whileoperating from a 4.2V to 14V input supply. The current modebuck offers superior line and load regulation. Available in the36 Ld TQFN package, the ISL97650B is specified for ambientoperation over the -40°C to +105°C temperature range.