DESCRIPTION
The step up converter uses fixed-frequency peak current mode control architecture which provides fast load-transient response and easy compensation. A 3.5A peak current limit for the internal switch protects power supply fault condition. The regulated positive and negative charge pump regulators generate the positive and negative supply rails for the TFT LCD gate resistive voltage-divider ICs. The high speed VCOM buffer features 500mA short circuit current, 20MHz bandwidth, fast slew rate 45V/µs, and rail-to-rail inputs and outputs. The HV-Switch circuit control provides the ability to control the slope for the gate drive voltage. It shapes the TFT gate high voltage to improve image quality. The EUP2681 is available in a small (4mm× 4mm) 24 pin TQFN package and operates over the -40ºC to +85ºC temperature range. FEATURES
2.5V to 5.5V Input Supply Range 1.2MHz Current Mode Step Up Converter - Built-In 20V, 3.5A, 0.16Ω N-MOSFET - High Efficiency Up to 90% - Internal digital S...
Eutech Microelectronics
