• - 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 TPS6020x step-up, regulated charge pumps generate a 3.3-V ± 4% output voltage from a 1.8-V to 3.6-V input voltage. The devices are typically powered by two Alkaline, NiCd or NiMH battery cells and operate down to a minimum supply voltage of 1.6 V. Continuous output current is a minimum of 100 mA for the TPS60200 and TPS60201 and 50 mA for the TPS60202 and TPS60203, all from a 2-V input. Only four external capacitors are needed to build a complete low-ripple dc/dc converter. The push-pull operating mode of two single-ended charge pumps assures the low output voltage ripple as current is continuously transferred to the output.

The devices operate in the newly developed LinSkip mode. In this operating mode, the device switches seamlessly from the power saving pulse-skip mode at light loads to the low-noise constant-frequency, linear-regulation mode once the output current exceeds the LinSkip threshold of about 7-mA.

特性

• Regulated 3.3-V Output Voltage With up to 100 mA Output Current From a 1.8 V to
  3.6 V Input Voltage
• Less Than 5 mV_(PP) Output Voltage Ripple Achieved With Push-Pull Topology
• Integrated Low-Battery and Power-Good Detector
• Switching Frequency Can Be Synchronized to External Clock Signal
• Extends Battery Usage With up to 90% Efficiency and 35 uA Quiescent Supply Current
• Reliable System Shutdown Because Output Capacitor Is Discharged When Device Is Disabled
• Easy-To-Design, Low Cost, Low EMI Power Supply Since No Inductors Are Used
• 0.05 uA Shutdown Current, Battery Is Isolated From Load in Shutdown Mode
• Compact Converter Solution in Ultra-Small 10-pin MSOP With Only Four External Capacitors Required
• Evaluation Module Available (TPS60200EVM-145)
• Applications
  • Replaces DC/DC Converters With Inductors in Battery Powered Applications Like:
    • Two Battery Cells to 3.3-V Conversion
    • MP3 Portable Audio Players
    • Battery-Powered Microprocessor Systems
    • Backup-Battery Boost Converters
    • PDA's, Organizers, Cordless Phones
    • Handheld Instrumentation
    • Glucose Meters and Other Medical Instruments