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Complete PMIC with integrated EEPROM

Maxim Integrated Products has introduced the MAX17106, a fully integrated PMIC (power-management IC) that minimises BOM cost and solution size for notebook LCD panels. This device is equipped with two boost regulators, an LDO, a programmable VCOM calibrator with buffer, three high-speed op amps, a high-voltage level-shifting scan driver, and 18kbyte of EEPROM. Fabricated using the company’s proprietary high-voltage BiCMOS process, the device integrates all blocks required to power the LCD source drivers, gate drivers and VCOM backplane. One boost regulator has a 1.2MHz switching frequency and integrates a power MOSFET. It delivers output voltages up to 14V from a 2.4V to 5.5V input. A second boost regulator generates the GON voltage. The LDO can supply a 300mA load and provides a highly accurate output voltage. The integrated op amps drive the VCOM backplane and feature a 150mA short-circuit current with a 45V/µs slew rate. The level-shifting scan driver swings from -22 to +38V and can swiftly drive capacitive loads. The IC includes an I2C controlled VCOM calibrator that provides 7bit setting accuracy. It also integrates 18kbyte of EEPROM for setting and controlling the VCOM voltage level. The device is available in a 7x7mm, 56pin TQFN package and operates over the -40°C to +85°C temperature range.