• - 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 TPS62560 device is a high efficiency synchronous step down converter, optimized for battery powered portable applications. It provides up to 1000-mA output current from batteries, such as single Li-Ion or other common chemistry AA and AAA cells.

With an input voltage range of 2.5 V to 5.5 V, the device is targeted to power a large variety of portable handheld equipment or POL applications.

The TPS62560 family operates at 2.25-MHz fixed switching frequency and enters a Power Save Mode operation at light load currents to maintain a high efficiency over the entire load current range.

The Power Save Mode is optimized for low output voltage ripple. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high.

特性

• Output Current up to 600 mA
• V_IN Range from 2.5 V to 5.5 V
• Output Voltage Accuracy in PWM Mode ±2.5%
• Typical 15-µA Quiescent Current
• 100% Duty Cycle for Lowest Dropout
• Soft Start
• Available in a Small TSOT, and
  2 mm × 2 mm × 0.8 mm QFN Package
• For Improved Features Set, see TPS62260
• APPLICATIONS
  • PDAs, Pocket PCs, Portable Media Players
  • Low-Power DSP Supply
  • POL Applications