• - 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 TPS6014x step-up, regulated charge pumps generate a 5-V ±4% output voltage from a 1.8 V to 3.6 V input voltage range. The devices are typically powered by two alkaline, NiCd, or NiMH battery cells and provide an output current of minimum 100 mA from a 2-V input. Only four external capacitors are needed to build a complete voltage tripler charge pump.

The devices regulate the output by using the pulse-skip topology. The controller is optimized for lowest output voltage ripple over the complete output current range. The output peak current and therefore the output voltage ripple are drastically reduced compared to a conventional pulse-skip topology by regulating the charge pump output resistance. At light loads the maximum output resistance is limited to assure a low quiescent current.

特性

• Regulated 5 V ± 4% Output Voltage With up to 100 mA Output Current From a 1.8 V to 3.6 V Input Voltage Range
• 65-uA Quiescent Supply Current
• 0.05-uA Shutdown Current, Battery Is Isolated From Load in Shutdown
• Integrated Low-Battery or Power-Good Indicator
• Low Output Voltage Ripple Over Complete Output Current Range
• Easy-To-Design With Low-EMI Power Supply Since no Inductors Are Required
• Evaluation Module Available (TPS60140EVM-144)
• Applications
  • Replaces DC/DC Converters With Inductors in Battery-Powered Applications:
    • Two Battery Cells to 5 V Conversion
    • Portable Instruments
    • Miniature Equipment
    • Backup-Battery Boost Converters
    • Medical Instruments
    • 5-V Smart Card Supply
    • Organizers, PDAs