Built in 3A, 0.15Ω Switching NMOS
1.2MHz Fixed Switching Frequency
Positive LDO Driver for Gate-High Supply
Buck-Boost controller for Gate-Low Supply
XON Function for Discharge
7 Channel Level Shifter 300mA Output Peak Current (Cload = 100pF) 15mA/per Channel Output Continuous Current
3 Channels Buffer
Fault and Thermal Protect
VQFN 48-6 x 6 Package
General Description

The AAT1263 provides a step-up PWM controller,  one voltage LDO drivers for positive gate High voltage,  a buck-boost controller for negative low voltage, 3 channel unity gain operational amplifiers, XON function and seven logic level shift drivers for TFT LCD display. VGLC pin will issue a signal to panel 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 50V and low level as low as –20V output swing capability. The maximum value of (VGH-VGL) is 55V.
The AAT1263 contains three operational amplifiers capable of supplying 200mA .
With the minimal external components, the AAT1263 offers a simple and economical solution for TFT LCD power.