TPS65111 - Texas Instruments

TPS65111 LTPS-LCD BIAS POWER SUPPLY / TRIPLE CHARGE PUMP

The TPS65110/11 is a very compact power supply solution providing the three voltages required by many LTPS LCD displays. All three regulated outputs are generated using a charge pump topology. The VCC charge pump provides precise, high efficiency, and very low ripple dc/dc conversion for the LCD analog power. The VCC boost ratio (x1.0, x1.33, x1.5, and x2.0.

Features

D Complete LTPS-LCD Bias Solution D Triple Output Charge Pump Providing VCC at 16 mA, VDD at 2 mA, VSS at 1 mA D 2.4 V to 5.5 V Input Voltage Range D Fixed Output Voltages of 3.3 V, 7.5 V, −2.7 V or 5.0 V, 9.0 V, −3.0 V D 50 µA Typical Quiescent Current D Less Than 1 µA Shutdown Current D Ultra-Low Ripple (VCC = 5 mV, Typical at 5 mA) D Autonomous Boost for VCC Supply D 1.5% Accuracy on Fixed VCC Output Voltage D Sequential Power Control D 24-Pin QFN Package (4 x 4) APPLICATIONS D Small Form LTPS−LCD Displays D PDAs, Pocket PCs D Smart Phones APPLICATION CIRCUIT FOR TPS65111 0.1 µF VIN 2.4 V.