• - 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 TPS62000 device is a low-noise synchronous step-down dc-dc converter that is ideally suited for systems powered from a 1-cell Li-ion battery or from a 2- to 3-cell NiCd, NiMH, or alkaline battery. The TPS62000 operates typically down to an input voltage of 1.8 V, with a specified minimum input voltage of 2 V.

The TPS62000 is a synchronous current-mode PWM converter with integrated N- and P-channel power MOSFET switches. Synchronous rectification is used to increase efficiency and to reduce external component count. To achieve the highest efficiency over a wide load current range, the converter enters a power-saving pulse-frequency modulation (PFM) mode at light load currents. Operating frequency is typically 750 kHz, allowing the use of small inductor and capacitor values.

特性

• High-Efficiency Synchronous Step-Down Converter
  With Greater Than 95% Efficiency
• 2 V to 5.5 V Operating Input Voltage Range
• Adjustable Output Voltage Range From 0.8 V to V_I
• Synchronizable to External Clock Signal up to 1 MHz
• Up to 300 mA Output Current
• Pin-Programmable Current Limit
• High Efficiency Over a Wide Load Current Range in
  Power Save Mode
• 100% Maximum Duty Cycle for Lowest Dropout
• Low-Noise Operation Antiringing Switch and
  PFM/PWM Operation Mode
• Internal Softstart
• 50-µA Quiescent Current (TYP)
• Evaluation Module Available for Commercial
  Temperature Range
• APPLICATIONS
  • Down-Hole Drilling
  • High Temperature Environments
• SUPPORTS EXTREME TEMPERATURE APPLICATIONS
  • Controlled Baseline
  • One Assembly/Test Site
  • One Fabrication Site
  • Available in Extreme (–55°C/210°C)
    Temperature Range⁽¹⁾