Renesas Electronics Corporation 5 Channel DC/DC Converter + V_ON Slice + Power Good ISL98602IRAAZ-T7A

The ISL98602 represents a high-power, integrated LCD supply IC targeted at large panel LCD displays. The ISL98602 integrates a high-power boost converter for AVDD generation, VsubON/sub and VsubOFF/sub charge pump drivers, one synchronous buck regulator, and one synchronous buck controller for two logic voltages. The VsubON/sub slicing circuitry and power good function are also included.brbr Operating at 1.3MHz, the AVDD boost converter features a 5.5A boost FET. Feedback is taken from the far side of the delay FET for improving regulation. The OVP circuit protects output side components.brbr The logic synchronous buck converter features two 2.3A FETs operating at 1.3MHz internal clock. The output voltage is set by the IC internally or with a feedback resistor. The soft-start circuitry is also integrated with the buck.brbr The second logic voltage is generated from a synchronous buck converter with MOSFET controllers. The overcurrent protection is also integrated with the buck.brbr The charge pump of VsubON/sub and VsubOFF/sub uses the full switching frequency and integrates the driver for high current capability. VsubON/sub is further processed through an integrated VsubON/sub slice circuit in order to reduce flicker.brbr Alternative fixed voltages at the boost, Buck1, Buck2, VsubON/sub charge pump, and VsubOFF/sub charge pump are available in ISL98602.

Switching Voltage Regulators AVDD=15 6 VFBB1=3 3 VOFF=-6 TSSBST=5 TDL

IC REG CTRLR/CONV 5OUT 40QFN