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TPS54873 - 产品图解:
TPS54873-用于预偏置输出的 4.5 至 5.5V 输入、8A 同步降压 SWIFT? 转换器
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TI产品 - TPS54873介绍
TPS54873 - 用于预偏置输出的 4.5 至 5.5V 输入、8A 同步降压 SWIFT? 转换器

TPS54873是TI公司的一款转换器(集成开关)产品,TPS54873是用于预偏置输出的 4.5 至 5.5V 输入、8A 同步降压 SWIFT? 转换器,本页介绍了TPS54873的产品说明、应用、特性等,并给出了与TPS54873相关的TI元器件型号供参考。

TPS54873 - 用于预偏置输出的 4.5 至 5.5V 输入、8A 同步降压 SWIFT? 转换器 - 转换器(集成开关) - DC/DC开关稳压器 - TI公司(Texas Instruments,德州仪器)

产品描述

As a member of the SWIFT™ family of dc/dc regulators, family of dc/dc regulators,the TPS54873 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 enables maximum performance and flexibility in choosing the output filter L and C components; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4 V; an internally or externally set slow-start circuit to limit inrush 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 TPS54873 is designed to only source current during startup.

The TPS54873 is available in a thermally enhanced 28-pin TSSOP (PWP) PowerPAD™ package, which eliminates bulky heatsinks. TI provides evaluation modules and the SWIFT™ designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

产品特性

  • 30-m, 12-A Peak MOSFET Switches for High Efficiency at 8-A Continuous Output Source or Sink Current
  • Disabled Current Sinking During Start-Up
  • 0.9-V to 3.3-V Adjustable Output Voltage Range With 1.0% Accuracy
  • Wide PWM Frequency: Fixed 350 kHz, 550 kHz or Adjustable 280 kHz to 700 kHz
  • Synchronizable to 700 kHz
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Integrated Solution Reduces Board Area and Component Count
  • APPLICATIONS
    • Low-Voltage, High-Density Distributed Power Systems
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors
    • Broadband, Networking and Optical Communications Infrastructure
    • Power PC Series Processors

PowerPAD and SWIFT are trademarks of Texas Instruments.

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