• - 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 TPS65023, TPS65023BSN0901059, SN0901059B is an integrated Power Management IC for applications powered by one Li-Ion or Li-Polymer cell, and which require multiple power rails. The TPS65023, TPS65023BSN0901059, SN0901059B provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system. The core converter allows for on-the-fly voltage changes via serial interface, allowing the system to implement dynamic power savings. All three step-down converters enter a low-power mode at light load for maximum efficiency across the widest possible range of load currents. The TPS65023, TPS65023BSN0901059, SN0901059B also integrates two general-purpose 200 mA LDO voltage regulators, which are enabled with an external input pin.

特性

• 1.7 A, 90% Efficient Step-Down Converter for Processor Core (VDCDC1)
• 1.2 A, Up to 95% Efficient Step-Down Converter for System Voltage (VDCDC2)
• 1.0 A, 92% Efficient Step-Down Converter for Memory Voltage (VDCDC3)
• 30 mA LDO/Switch for Real Time Clock (VRTC)
• 2 × 200 mA General-Purpose LDO
• Dynamic Voltage Management for Processor Core
• Preselectable LDO Voltage Using Two Digital Input Pins
• Externally Adjustable Reset Delay Time
• Battery Backup Functionality
• Separate Enable Pins for Inductive Converters
• I²C Compatible Serial Interface
• I²C Setup and Hold Timing:
  • TPS65023: 300ns
  • TPS65023B: 100ns
• I²C Setup and Hold Timing:
  • SN0901059: 300ns
  • SN0901059B: 100ns
• 85-µA Quiescent Current
• Low Ripple PFM Mode
• Thermal Shutdown Protection