• - 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 TPS4002x family of dc-to-dc controllers are designed for non-isolated synchronous buck regulators, providing enhanced operation and design flexability through user programmability.

The TPS4002x utilizes a proprietary Predictive Gate Drive™ technology to minimize the diode conduction losses associated with the high-side and synchronous rectifier N-channel MOSFET transistions. The integrated charge pump with boost circuit provides a regulated 5-V gate drive for both the high side and synchronous rectifier N-channel MOSFETs. The use of the Predictive Gate Drive™ technology and charge pump/boost circuits combine to provide a highly efficient, smaller and less expensive converter.

Design flexibility is provided through user programmability of such functions as: operating frequency, short circuit current detection thresholds, soft-start ramp time, and external synchronization frequency.

特性

• Operating Input Voltage 2.25 V to 5.5 V
• Output Voltage as Low as 0.7 V
• 1% Internal 0.7 V Reference
• Predictive Gate Drive™ N-Channel MOSFET Drivers for Higher Efficiency
• Externally Adjustable Soft-Start and Short Circuit Current Limit
• Programmable Fixed-Frequency 100 kHz-to-1 MHz Voltage-Mode Control
• Source-Only Current or Source/Sink Current
• Quick Response Output Transient Comparators with Power Good Indication Provide Output Status
• 16-Pin PowerPAD™ Package
• APPLICATIONS
  • Networking Equipment
  • Telecom Equipment
  • Base Stations
  • Servers
  • DSP Power