• - 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 TPS6012x step-up, regulated charge pumps generate a 3.3-V or 3-V ±4% output voltage from a 1.8-V to 3.6-V input voltage (two alkaline, NiCd, or NiMH batteries). They can deliver an output current of at least 200 mA (100 mA for the TPS60122 and TPS60123), all from a 2-V input. Four external capacitors are needed to build a complete high efficiency dc/dc charge pump converter. To achieve the high efficiency over a wide input voltage range, the charge pump automatically selects between a 1.5x or doubler conversion mode. From a 2-V input, all ICs can start with full load current.

The devices feature the power-saving pulse-skip mode to extend battery life at light loads. TPS60120, TPS60122, and TPS60124 include a low battery comparator.

特性

• High Average Efficiency Over Input Voltage Range Because of Special Switching Topology
• Minimum 200-mA Output Current From an Input Voltage Range of 1.8-V to 3.6-V
• Regulated 3.3-V or 3-V ±4% Output Voltage
• No Inductors Required, Low EMI
• Only Four External Components Required
• 55-uA Quiescent Supply Current
• 0.05-uA Shutdown Current
• Load Disconnected in Shutdown
• Integrated Low Battery and Power Good Detectors
• Evaluation Module Available (TPS60120EVM-142)
• Applications
  • Applications Powered by Two Battery Cells
  • Portable Instruments
  • Battery-Powered Microprocessor Systems
  • Miniature Equipment
  • Backup-Battery Boost Converters
  • PDAs, Organizers, Laptops
  • MP-3 Portable Audio Players
  • Handheld Instrumentation
  • Medical Instruments (e.g., Glucose Meters)