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TPS54350

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具有低侧 栅极驱动的 4.5V 至 20V 输入、3A 同步降压转换器

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open-in-new 比较替代产品
功能与比较器件相同但引脚有所不同。
TPS543320 正在供货 4V 至 18V、3A 同步 SWIFT™ 降压转换器 This product offers higher efficiency, better accuracy and smaller size.
功能与比较器件相似。
LM27402 正在供货 具有 DCR 电流感应的 3V 至 20V 电压模式同步降压控制器 Wider Vin support and more switching frequency options

TPS54350

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产品详情

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.005 Duty cycle (max) (%) 80
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 12 Vout (min) (V) 0.9 Features Enable, Frequency synchronization, Phase Interleaving, Power good, Synchronous Rectification Control mode Voltage mode Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.005 Duty cycle (max) (%) 80
HTSSOP (PWP) 16 32 mm² (5 mm × 6.4 mm)
  • 100 m, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
  • Uses External Lowside MOSFET or Diode
  • Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
  • Synchronizes to External Clock
  • 180° Out of Phase Synchronization
  • Wide PWM Frequency – Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
  • Internal Slow Start
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Adjustable Undervoltage Lockout
  • 16-Pin TSSOP PowerPAD™ Package
  • APPLICATIONS
    • Industrial & Commercial Low Power Systems
    • LCD Monitors and TVs
    • Computer Peripherals
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.
  • 100 m, 4.5-A Peak MOSFET Switch for High Efficiency at 3-A Continuous Output Current
  • Uses External Lowside MOSFET or Diode
  • Output Voltage Adjustable Down to 0.891 V With 1% Accuracy
  • Synchronizes to External Clock
  • 180° Out of Phase Synchronization
  • Wide PWM Frequency – Fixed 250 kHz, 500 kHz or Adjustable 250 kHz to 700 kHz
  • Internal Slow Start
  • Load Protected by Peak Current Limit and Thermal Shutdown
  • Adjustable Undervoltage Lockout
  • 16-Pin TSSOP PowerPAD™ Package
  • APPLICATIONS
    • Industrial & Commercial Low Power Systems
    • LCD Monitors and TVs
    • Computer Peripherals
    • Point of Load Regulation for High Performance DSPs, FPGAs, ASICs and Microprocessors

PowerPAD and SWIFT are trademarks of Texas Instruments.

The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54350 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. 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.

The TPS54350 is a medium output current synchronous buck PWM converter with an integrated high side MOSFET and a gate driver for an optional low side external MOSFET. Features include a high performance voltage error amplifier that enables maximum performance under transient conditions and flexibility in choosing the output filter inductors and capacitors. The TPS54350 has an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 4.5 V; an internal slow-start circuit to limit in-rush currents; and a power good output to indicate valid output conditions. The synchronization feature is configurable as either an input or an output for easy 180° out of phase synchronization.

The TPS54350 device is available in a thermally enhanced 16-pin TSSOP (PWP) PowerPAD™ package. 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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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 4.5V to 20V Input, 3-A Output Synchronous PWM Switcher w/Integrated FET (SWIFT) 数据表 (Rev. C) 2004-10-28
应用手册 低纹波电源的峰值电流模式转换器次级滤波器设计 – 第 II 部 分：针对稳定性的混合检测网络设计 PDF | HTML 英语版 PDF | HTML 2024-2-28
应用手册 低纹波电源的峰值电流模式转换器次级滤波器设计 – 第 I 部 分：用于减少输出纹波的滤波器设计 PDF | HTML 英语版 PDF | HTML 2024-2-23
应用手册 Seminar 900 Topic 2 - Snubber Circuits: Theory, Design and Application 2001-2-15

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评估板

TPS54350EVM-235 — 3A， 输入电压为 4.5V 至 20V 且输出电压可调节的 DC/DC 转换器

The TPS54350EVM-235 evaluation module allows the designer to evaluate the TPS54350 SWIFT DC/DC converter optimized for small size and low height. The inductor and capacitors selected allow a wide 6-18V input and a 3.3V output up to 3A. The output voltage can be easily adjusted for lower DSP and (...)

用户指南: PDF | HTML
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仿真模型

TPS54350 TINA-TI Transient Reference Design

SLVM745.TSC (400 KB) - TINA-TI 参考设计
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仿真模型

TPS54350 TINA-TI Transient Spice Model

SLVM746.ZIP (56 KB) - TINA-TI Spice 模型
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仿真模型

TPS54350 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM337A.ZIP (43 KB) - PSpice 模型
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封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 16 Ultra Librarian
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