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AC/DC & DC/DC converters (integrated FET)

TPS54673

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适用于预偏置输出的 3V 至 6V 输入、6A SWIFT™ 同步降压转换器

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TPS54673

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产品详情

Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 6 Topology Buck Type Converter Switching frequency (min) (kHz) 280 Switching frequency (max) (kHz) 700 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.011
Iout (max) (A) 6 Vin (min) (V) 3 Vin (max) (V) 6 Topology Buck Type Converter Switching frequency (min) (kHz) 280 Switching frequency (max) (kHz) 700 Features Enable, Frequency synchronization, Power good, Pre-Bias Start-Up, Synchronous Rectification Control mode Voltage mode Vout (min) (V) 0.9 Vout (max) (V) 4.5 Rating Catalog Operating temperature range (°C) -40 to 85 Iq (typ) (A) 0.011
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 30-, 12-A Peak MOSFET Switches for High Efficiency at 6-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.
  • 30-, 12-A Peak MOSFET Switches for High Efficiency at 6-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.

As a member of the SWIFT™ family of dc/dc regulators, the TPS54673 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 3 V; an internally or 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 TPS54673 is designed to only source current during startup.

The TPS54673 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.

As a member of the SWIFT™ family of dc/dc regulators, the TPS54673 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 3 V; an internally or 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 TPS54673 is designed to only source current during startup.

The TPS54673 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.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 Synchronous Buck Switcher w/Disabled Sinking During Start-Up 数据表 (Rev. A) 2005年 1月 13日
应用手册 Thermal Performance of SWIFT(TM) DC/DC Converters in the 28-Pin HTSSOP Package 2005年 2月 4日
更多文献资料 XILINXPWR-082 EVM 2004年 7月 23日
应用手册 Sequencing with TPS54x80 and TPS54x73 DC/DC Converters 2003年 4月 14日
EVM 用户指南 DC/DC Converter With Disabled Sink During Start-Up EVM 2003年 1月 17日
应用手册 Using Low Voltage SWIFT DC/DC Converters with Ceramic Capacitors 2003年 1月 8日
应用手册 Optimizing the Layout of the TPS546xx for Thermal Performance (Rev. A) 2002年 2月 8日
应用手册 Designing for Small-Size, High-Freq Applications Using TPS546xx DC/DC Converters 2001年 10月 19日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

TPS54673 TINA-TI Transient Reference Design

SLVM297.TSC (1085 KB) - TINA-TI Reference Design
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仿真模型

TPS54673 TINA-TI Transient Spice Model

SLVM298.ZIP (36 KB) - TINA-TI Spice Model
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仿真模型

TPS54673 Unencrypted Transient PSpice Model Package (Rev. A)

SLVM140A.ZIP (60 KB) - PSpice Model
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光绘文件

Gerber File for TPS54x73EVM

SLVC053.ZIP (147 KB)
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封装 引脚 下载
HTSSOP (PWP) 28 查看选项
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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