The AAT1132 provides a step-up PWM controller,  low dropout linear regulator, two high voltage LDO drivers (one for positive gate High voltage and one for negative VGL2), VCOM operational amplifier, reset function and six logic level shift drivers for TFT LCD display. RST pin will issue a reset signal to Logic level shift driver when VIN voltage is too low.
The PWM controller consists of an on-chip voltage reference, oscillator, error amplifier, current sense circuit, comparator, under-voltage lockout protection and soft-start control circuit. The thermal and power fault protection prevents excessive power damaging internal circuit.
The high voltage logic level shifter driver can drive with high level as high as 40V and low level as low as –20V output swing capability. The maximum value of (VGH-VGL) is 45V.
The AAT1132 contains one operational amplifier capable of supplying 200mA to VCOM.
With the minimal external components, the AAT1132 offers a simple and economical solution for TFT LCD power.