• - 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 TPS65055 is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails.

The TPS65055 provides two highly efficient,
2.25 MHz step-down converters targeted at providing the core voltage and I/O voltage in a processor-based system. Both step-down converters enter a low power mode at light load for maximum efficiency across the widest possible range of load currents.

For low noise applications the device can be forced into fixed frequency PWM mode using the I²C compatible interface. In shutdown mode, current consumption is reduced to less than 1 µA.

The device allows the use of small inductors and capacitors to achieve a small solution size.

• Up to 95% Efficiency
• Output Current for DCDC Converters 2 × 0.6A
• Two Selectable Fixed Output Voltages 1.0 V/1.2 V for DCDC2
• V_IN Range for DCDC Converters From 2.5 V to 6 V
• 2.25 MHz Fixed Frequency Operation
• Power Save Mode at Light Load Current
• 180° Out of Phase Operation
• Output Voltage Accuracy in PWM Mode ±1%
• Low Ripple PFM Mode
• Total Typ. 32 µA Quiescent Current for Both DCDC Converters
• 100% Duty Cycle for Lowest Dropout
• 2 General Purpose 400 mA- High PSRR LDOs
• 2 General Purpose 200 mA- High PSRR LDOs
• V_IN Range for LDOs from 1.5 V to 6.5 V
• Digital Voltage Selection for the LDOs
• I²C Compatible Interface
• Available in a 4 mm × 4 mm 32-Pin QFN Package
• APPLICATIONS
  • Cell Phones, Smart-phones
  • WLAN