• - 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 TPS54418 device is a full featured 6 V, 4 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54418 enables small designs by integrating the MOSFETs, implementing current mode control to reduce external component count, reducing inductor size by enabling up to 2 MHz switching frequency, and minimizing the IC footprint with a small 3mm × 3mm thermally enhanced QFN package.

The TPS54418 provides accurate regulation for a variety of loads with an accurate ±1% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 30m MOSFETs and 350µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

特性

• Two 30 m (typical) MOSFETs for high efficiency at 4 A loads
• 200kHz to 2MHz Switching Frequency
• 0.8 V ± 1% Voltage Reference Over Temperature
• Synchronizes to External Clock
• Adjustable Slow Start/Sequencing
• UV and OV Power Good Output
• Low Operating and Shutdown Quiescent Current
• Safe Start-up into Pre-Biased Output
• Cycle by Cycle Current Limit, Thermal and Frequency Fold Back Protection
• –40°C to 150°C Operating Junction Temperature Range
• Thermally Enhanced 3mm × 3mm 16-pin QFN
• APPLICATIONS
  • Low-Voltage, High-Density Power Systems
  • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
  • Broadband, Networking and Optical Communications Infrastructure