The ISL97653A represents a fully integrated supply IC for LCD-TV applications. With an input operating range of 4V to 14V, both commonly used LCD-TV input supplies, 5V and 12V, are supported. An AVDD supply up to 20V is generated by a high-performance PWM BOOST converter with an integrated 4.4A FET. V_ON is generated using an integrated charge pump with on-chip diodes and can be modulated using an on-chip V_ON slice control circuit. V_OFF is generated using an integrated charge pump controller. Additionally, the chip allows for two logic supplies. A buck regulator with an included 2.5A high side switch is used for the main logic output and an internal LDO controller can be used to generate a second logic LDO output.

To facilitate production test, an integrated HVS circuit is included which can provide high voltage stress of the LCD panel.

An on-board temperature sensor is also provided for system thermal management control.

The ISL97653A is packaged in a 40 Ld 6mmx6mm QFN package and is specified for operation over the -40°C to +105°C temperature range.

• 5V to 14V Input Supply
• Integrated 4.4A Boost Converter
• Integrated V_ON Charge Pump and V_ON Slice Circuit
• Integrated V_OFF Charge Pump Output
• Integrated 2.5A Buck Converter
• LDO Controller for an Additional Logic Supply
• High Voltage Stress (HVS) Test Mode
• Thermal Shutdown
• 40 Ld QFN (6mmx6mm) Package
• Pb-Free (RoHS Compliant)

• LCD-TVs
• Industrial/Medical LCD Displays