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. VON is generated using an integrated charge pump with on-chip diodes and can be modulated using an on-chip VON slice control circuit. VOFF 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.

Features

• 5V to 14V Input Supply

• Integrated 4.4A Boost Converter

• Integrated VON Charge Pump and VON Slice Circuit

• Integrated VOFF 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)

Applications

• LCD-TVs

• Industrial/Medical LCD Displays