Description
AAT2822/23/24/25 www.DataSheet4U.com PRODUCT DATASHEET SystemPowerTM TFT-LCD DC-DC Converter with WLED Driver and VCOM Buffer .
The AAT2822-AAT2825 family of integrated panel power solutions provides the regulated voltages required by an active-matrix thin-film transistor (TFT).
Features
* LCD Bias Power
* 2.5V to 5.5V Input Supply Range
* 1.3MHz Fixed Frequency Current-Mode Step-Up Regulator
* Fast Transient Response
* Adjustable Voltage up to 14.5V ▪ ±1% Typical Accuracy
* High Efficiency (93%) @ 50mA Output Current
* Small External In
Applications
* with up to seven white LEDs in series or up to 39 white LEDs in a parallel and series configuration. LED brightness is PWM controlled up to 1kHz. Filtered PWM is supported for higher frequencies. The high slew rate operational amplifier is suitable for VCOM buffering and gain adjustment. The sequenc