• - 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

As a member of the SWIFT™ family of dc/dc regulators, the TPS54377 low-input-voltage high-output-current synchronous-buck PWM converter integrates all required active components. Included on the substrate with the listed features are a true, high performance, voltage error amplifier that provides high performance under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 3 V; an internally and externally set slow-start circuit to limit in-rush currents; and a power good output useful for processor/logic reset, fault signaling, and supply sequencing.

For reliable power up in output precharge applications, the TPS54377 is designed to only source current during start-up.

特性

• 60-m MOSFET Switches for High Efficiency at 3-A Continuous Output Current
• Adjustable Output Voltage Down to 0.9 V With 1% Accuracy
• Switching Frequency: Adjustable From
  280 kHz to 1600 kHz
• Disabled Current Sinking During Start-Up
• Fast Transient Response
• Load Protected by Peak Current Limit and Thermal Shutdown
• Integrated Solution Reduces Board Area and Total Cost
• Spacing Saving 4mm x 5mm QFN Packaging
• For SWIFT Documentation, Application Notes, and Design Software, see the TI website at www.ti.com/swift
• APPLICATIONS
  • Low-Voltage, High-Density Systems With Power Distributed at 5 V or 3.3 V
  • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs, and Microprocessors
  • Broadband, Networking and Optical Communications Infrastructure