TPS54319

正在供貨

采用 3mm x 3mm QFN 封裝的 2.95V 至 6V 輸入電壓、3A、2MHz SWIFT? 同步降壓轉換器

產品詳情

Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.95 Vout (max) (V) 4.5 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 150 Iq (typ) (μA) 360 Duty cycle (max) (%) 98 Type Converter
Rating Catalog Topology Buck Iout (max) (A) 3 Vin (max) (V) 6 Vin (min) (V) 2.95 Vout (max) (V) 4.5 Vout (min) (V) 0.8 Features Enable, Frequency synchronization, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking Control mode current mode Switching frequency (min) (kHz) 300 Switching frequency (max) (kHz) 2000 Operating temperature range (°C) -40 to 150 Iq (typ) (μA) 360 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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設計和開發

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用戶指南: PDF
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評估板

TPS54319EVM-626 — 用于 TPS54319 降壓 DC/DC 轉換器的評估模塊

TPS54319EVM-626 是一塊完全組裝且經過測試的電路板，用于評估 TPS54319 2.95V 至 6V 輸入電壓、3A 同步降壓轉換器。具有輸入和輸出的終端塊。還提供其它測試點。
用戶指南: PDF
TI.com 上無現貨
仿真模型

TPS54319 TINA-TI Average Reference Design

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

TPS54319 TINA-TI Average Spice Model

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

TPS54319 TINA-TI Transient Reference Design

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

TPS54319 TINA-TI Transient Spice Model

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

TPS54319 Unencrypted PSpice Average Model Package (Rev. A)

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

TPS54319 Unencrypted PSpice Transient Model Package (Rev. B)

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

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支持的產品和硬件

支持的產品和硬件

產品
AC/DC 和 DC/DC 轉換器（集成 FET）
TPS54218 — 2.95V 至 6V 輸入、2A 同步降壓 SWIFT? 轉換器 TPS54318 — 2.95V 至 6V 輸入、3A 同步降壓 SWIFT? 轉換器 TPS54319 — 采用 3mm x 3mm QFN 封裝的 2.95V 至 6V 輸入電壓、3A、2MHz SWIFT? 同步降壓轉換器 TPS54320 — 4.5V 至 17V 輸入、3A 同步降壓 SWIFT? 轉換器 TPS54418 — 2.95V 至 6V 輸入、4A 同步降壓 SWIFT? 轉換器 TPS54521 — 17V 輸入、5A 同步降壓轉換器 TPS54618 — 2.95V 至 6V 輸入、6A SWIFT? 同步降壓轉換器 TPS54620 — 4.5V 至 17V、6A 同步 SWIFT? 降壓轉換器 TPS54622 — 具有斷續電流限制的 4.5V 至 17V、6A 同步 SWIFT? 降壓轉換器 TPS54821 — 具有斷續電流限制的 4.5V 至 17V、8A 同步降壓轉換器 TPS56921 — 具有 VID 控制的 4.5V 至 17V、9A 同步降壓轉換器
硬件開發
評估板
TPS54418EVM-375 — TPS54418 3.3V 輸入、1.8V 輸出、4A SWIFT™ 轉換器評估模塊 TPS54620EVM-374 — TPS54620 8V 至 17V、6A SWIFT™ 轉換器評估模塊
軟件
計算工具
TPS54620DESIGN-CALC — TPS54620 & TPS54XXX 電流型降壓轉換器設計計算器
參考設計

TIDA-01378 — 適用于上行 DOCSIS 3.1 應用的寬帶接收器參考設計

此參考設計包含適用于寬帶接收器應用的模擬前端 (AFE) 信號鏈，該信號鏈使用 LMH2832 數控可變增益放大器 (DVGA) 和 ADS54J40 模數轉換器 (ADC)。此設計主要針對適用于電纜調制解調器終端系統 (CMTS) 的上行 DOCSIS 3.1 接收器應用，并支持高達 196MHz 的上行信號帶寬。該電路滿足了 DOCSIS 3.1 標準的濾波和模擬信號處理要求，使得系統設計人員更容易將設計立即整合在上行信號路徑的 CMTS 側。
設計指南: PDF
原理圖: PDF
封裝 引腳 CAD 符號、封裝和 3D 模型
WQFN (RTE) 16 Ultra Librarian

訂購和質量

包含信息：
  • RoHS
  • REACH
  • 器件標識
  • 引腳鍍層/焊球材料
  • MSL 等級/回流焊峰值溫度
  • MTBF/時基故障估算
  • 材料成分
  • 鑒定摘要
  • 持續可靠性監測
包含信息：
  • 制造廠地點
  • 封裝廠地點

推薦產品可能包含與 TI 此產品相關的參數、評估模塊或參考設計。

支持和培訓

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