AT1731A

www.DataSheet4U.com AT1731A Preliminary Product Information DC-DC Power IC for TFT Panel Feature 2.6V to 5.5V Supply Voltage Operating Range. 1.2MHz Fixed Switching Frequency. Current-Mode PWM Step-Up Regulator Description The AT1731A DC-DC converter supply a compact and small power supply solution to provide the regulated voltages required by thin film transistor Main High-Power Output up to 15V (TFT) LCD display. A built-in power sequence Typical ± 1% Accuracy control. Built-In N-MOS, Rds(on)≒0.25Ω(Typ.) The main step-up DC-DC converter is a Current-Limit Comparator Negative Charge-Pump Output Voltage Down high-Frequency 1.2 MHz current-mode PWM regulator with a built-in 0.25ΩN-MOS that allows the to –30 V. use of ultra-small inductors and ceramic capacitor to Positive Charge-Pump Output Voltage Up to generate an externally set output voltage up to 15V. It 30 V. Internal Power-On Sequencing , Soft-Start. provides fast transient response to pulsed loads while Thermal Protection , Short Circuit Protection. operating with efficiencies over 85%. 1uA Shutdown Current. The two built-in charge-pump regulators are used to 1.5mA Quiescent Current. generate the TFT gate-on and gate-off supplies and 16-pin TSSOP Package. can adjust gate-on and gate-off output voltage with external resistive divider between gate-off/on output Application voltage and ground. TFT-LCD Notebook Display TFT-LCD Desktop Monitor Panels. AT1731A is available in TSSOP- 16 package. Car...