• - 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 TPS65053x are integrated Power Management ICs for applications powered by one Li-Ion or Li-Polymer cell, which require multiple power rails. The TPS65053x provide two highly efficient, 2.25MHz 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 devices can be forced into fixed frequency PWM mode by pulling the MODE pin high. Both converters allow the use of small inductors and capacitors to achieve a small solution size. TPS65053 provides an output current of up to 1A on the DCDC1 converter and up to 0.

特性

• Up To 95% Efficiency
• Output Current for DC/DC Converters:
  • TPS65053: DCDC1 = 1 A; DCDC2 = 0.6 A
  • TPS650531: DCDC1 = 1 A; DCDC2 = 1 A
  • TPS650532: DCDC1 = 1 A; DCDC2 = 1 A
• DC/DC Converters Externally Adjustable
• V_IN Range for DC/DC 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%
• Total Typical 32-µA Quiescent Current for Both DC/DC Converters
• 100% Duty Cycle for Lowest Dropout
• One General-Purpose 400-mA LDO
• Two General-Purpose 200-mA LDOs
• V_IN Range for LDOs from 1.5 V to 6.5 V
• Output Voltage for LDO3:
  • TPS65053: VLDO3 = 1.3 V
  • TPS650531: VLDO3 = 1.2 V
  • TPS650532: VLDO3 = 1.5 V