The ISL97650 represents a high power, integrated LCD supply IC targeted at large panel LCD displays. The ISL97650 integrates a high power, 2.6A boost converter for A_VDD generation, an integrated V_ON charge pump, a V_OFF charge pump driver, V_ON slicing circuitry and a buck regulator with 2A switch for logic generation.

The ISL97650 has been designed for ease of layout and low BOM cost. Supply sequencing is integrated for both A_VDD -> V_OFF -> V_ON and A_VDD/V_OFF -> V_ON sequences. The TFT power sequence uses a separate enable to the logic buck regulator for maximum flexibility.

Peak efficiencies are >90% for both the boost and buck while operating from a 4V to 14V input supply. The current mode buck offers superior line and load regulation. Available in the 36 Ld TQFN package, the ISL97650 is specified for ambient operation over the -40°C to +105°C temperature range.

• 4V to 14V Input Supply
• A_VDD Boost Up to 20V, with Integrated 2.8A FET
• Integrated V_ON Charge Pump, Up to 35V_OUT
• V_OFF Charge Pump Driver, Down to -18V
• V_LOGIC Buck Down to 1.2V, with Integrated 2A FET
• Automatic Start-up Sequencing
  • A_VDD -> V_OFF -> V_ON or A_VDD/V_OFF -> V_ON
  • Independent Logic Enable
• V_ON Slicing
• Thermally Enhanced 6x6 Thin QFN Package
• Pb-free (RoHS compliant)

• LCD Monitors (15"+)
• LCD-TVs (up to 40")
• Notebook Displays (up to 16")
• Industrial/Medical LCD Displays