• - 交流-直流(AC-DC)控制器和稳压器
• - 直流-直流(DC-DC)控制器、转换器和稳压器
• - 电压和电流管理
• - 通讯IC
• - 驱动器
• - 热管理

• - 时钟及数据分配
• - 标准逻辑

• - 放大器和比较器
• - 模拟开关
• - 数字电位计
• - 接口
• - EMI和RFI滤波器

• - EEPROM存储器
• - 非易失性只读存储器(NVRAM)
• - SRAM存储器

说明

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) is automatically set based on input and output voltage conditions. The VCC output assures 16 mA of current by using three 0.22-µF flying capacitors. If the required output current is smaller, smaller capacitors can be applied.

The VDD charge pump provides a higher positive voltage, and the VSS charge pump provides the negative output voltage.

特性

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