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The ISL97661 represents a high power, integrated LCDsupply IC targeted at large panel LCD displays. TheISL97661 integrates a high power, 2.6A 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 ISL97661 has been designed for ease of layout and lowBOM 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 4V to 14V input supply. The current modebuck offers superior line and load regulaTIon. Available in the36 Ld QFN package, the ISL97661 is specified for ambientoperation over the -40°C to +105°C temperature range.
