• - 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 TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.

The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.

The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.

特性

• Up to 93% Efficiency at 3-MHz Operation
• Up to 500-mA Output Current at V_I = 2.7 V
• 3-MHz Fixed Frequency Operation
• Best in Class Load and Line Transient
• Complete 1-mm Component Profile Solution
• –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
• 35-ns Minimum On-Time
• Power-Save Mode Operation at Light Load Currents
• Fixed and Adjustable Output Voltage
• Only 86-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Synchronizable On the Fly to External
  Clock Signal
• Integrated Active Power-Down Sequencing (TPS6232x only)
• Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree™, and NanoStar™ (CSP) Packaging
• APPLICATIONS
  • Cell Phones, Smart-Phones
  • WLAN and Bluetooth™ Applications
  • Micro DC-DC Converter Modules
  • PDAs, Pocket PCs
  • USB-Based DSL Modems