• - 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 TPS61045 is a high frequency boost converter with digitally programmable output voltage and true shutdown. During shutdown, the output is disconnected from the input by opening the internal input switch. This allows a controlled power up/down sequencing of the display. The output voltage can be increased or decreased in digital steps by applying a logic signal to the CTRL pin. The output voltage range, as well as the output voltage step size, can be programmed with the feedback divider network. With a high switching frequency of up to 1 MHz, the TPS61045 allows the use of small external components and together, with the small 8-pin QFN package, a minimum system solution size is achieved.

特性

• Input Voltage Range . . .1.8 V to 6 V
• Output voltage of up to 28V possible
• Up to 85% Efficiency
• Digitally Adjustable Output Voltage Control
• Disconnects Output From Input During Shutdown
• Switching Frequency . . . Up to 1 MHz
• No Load Quiescent Current . . . 40 µA Typ
• Thermal Shutdown Mode
• Shutdown Current . . . 0.1 µA Typ
• Available in Small 3mm × 3mm QFN package
• APPLICATIONS
  • LCD Bias Supply For Small to Medium LCD Displays
  • OLED Display Power Supply
    • PDA, Pocket PC, Smart Phones
    • Handheld Devices
    • Cellular Phones