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TPS54319

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采用 3mm x 3mm QFN 封装的 2.95V 至 6V 输入电压、3A、2MHz SWIFT™ 同步降压转换器

产品详情

Vin (min) (V) 2.95 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iout (max) (A) 3 Iq (typ) (mA) 0.36 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
Vin (min) (V) 2.95 Vin (max) (V) 6 Vout (min) (V) 0.8 Vout (max) (V) 4.5 Iout (max) (A) 3 Iq (typ) (mA) 0.36 Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Operating temperature range (°C) -40 to 150 Rating Catalog Regulated outputs (#) 1 Control mode current mode Duty cycle (max) (%) 98 Type Converter
WQFN (RTE) 16 9 mm² 3 x 3
  • Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
  • 300kHz to 2MHz Switching Frequency
  • 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • Pin Compatible to TPS54318
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
      LCD Displays, CPE Equipment

SWIFT, SwitcherPro are trademarks of Texas Instruments.

  • Two 45-m (typical) MOSFETs for High Efficiency at 3-A Loads
  • 300kHz to 2MHz Switching Frequency
  • 0.8 V ± 3.0% Voltage Reference Over Temperature (0°C to 85°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start/Sequencing
  • UV and OV Power Good Output
  • –40°C to 150°C Operating Junction Temperature Range
  • Thermally Enhanced 3mm × 3mm 16-pin QFN
  • Pin Compatible to TPS54318
  • APPLICATIONS
    • Low-Voltage, High-Density Power Systems
    • Point-of-Load Regulation for Consumer Applications such as Set Top Boxes,
      LCD Displays, CPE Equipment

SWIFT, SwitcherPro are trademarks of Texas Instruments.

The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54319 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 TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 45m MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

The TPS54319 device is a full featured 6 V, 3 A, synchronous step down current mode converter with two integrated MOSFETs.

The TPS54319 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 TPS54319 provides accurate regulation for a variety of loads with an accurate ±3.0% Voltage Reference (VREF) over temperature.

Efficiency is maximized through the integrated 45m MOSFETs and 360µA typical supply current. Using the enable pin, shutdown supply current is reduced to 2 µA by entering a shutdown mode.

Under voltage lockout is internally set at 2.6 V, but can be increased by programming the threshold with a resistor network on the enable pin. The output voltage startup ramp is controlled by the slow start pin. An open drain power good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency fold back and thermal shutdown protects the device during an over-current condition.

The TPS54319 is supported in the SwitcherPro™ Software Tool at www.ti.com/switcherpro.

For more SWIFT™ documentation, see the TI website at www.ti.com/swift.

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设计和开发

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评估板

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用户指南: PDF
TI.com 上无现货
评估板

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用户指南: PDF
TI.com 上无现货
仿真模型

TPS54319 TINA-TI Average Reference Design

SLVM489.TSC (261 KB) - TINA-TI Reference Design
仿真模型

TPS54319 TINA-TI Average Spice Model

SLVM488.ZIP (7 KB) - TINA-TI Spice Model
仿真模型

TPS54319 TINA-TI Transient Reference Design

SLVM467.TSC (218 KB) - TINA-TI Reference Design
仿真模型

TPS54319 TINA-TI Transient Spice Model

SLVM466.ZIP (55 KB) - TINA-TI Spice Model
仿真模型

TPS54319 Unencrypted PSpice Average Model Package (Rev. A)

SLVM373A.ZIP (136 KB) - PSpice Model
仿真模型

TPS54319 Unencrypted PSpice Transient Model Package (Rev. B)

SLIM292B.ZIP (41 KB) - PSpice Model
计算工具

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支持的产品和硬件

支持的产品和硬件

产品
降压转换器(集成开关)
TPS54218 2.95V 至 6V 输入、2A 同步降压 SWIFT™ 转换器 TPS54318 2.95V 至 6V 输入、3A 同步降压 SWIFT™ 转换器 TPS54319 采用 3mm x 3mm QFN 封装的 2.95V 至 6V 输入电压、3A、2MHz SWIFT™ 同步降压转换器 TPS54320 4.5V 至 17V 输入、3A 同步降压 SWIFT™ 转换器 TPS54418 2.95V 至 6V 输入、4A 同步降压 SWIFT™ 转换器 TPS54521 17V 输入、5A 同步降压转换器 TPS54618 2.95V 至 6V 输入、6A 同步降压 SWIFT™ 转换器 TPS54620 4.5V 至 17V、6A 同步 SWIFT™ 降压转换器 TPS54622 具有断续电流限制的 4.5V 至 17V、6A 同步 SWIFT™ 降压转换器 TPS54821 具有断续电流限制的 4.5V 至 17V、8A 同步降压转换器 TPS56921 具有 VID 控制的 4.5V 至 17V、9A 同步降压转换器
硬件开发
评估板
TPS54418EVM-375 TPS54418 3.3V 输入、1.8V 输出、4A SWIFT™ 转换器评估模块 TPS54620EVM-374 TPS54620 8V 至 17V、6A SWIFT™ 转换器评估模块
软件
计算工具
TPS54620DESIGN-CALC TPS54620 & TPS54XXX 电流型降压转换器设计计算器
模拟工具

PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
参考设计

TIDA-01378 — 适用于上行 DOCSIS 3.1 应用的宽带接收器参考设计

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设计指南: PDF
原理图: PDF
封装 引脚数 下载
WQFN (RTE) 16 了解详情

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
  • 认证摘要
  • 持续可靠性监测

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