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

TPS57140-Q1

現行

具 Eco-Mode™ 的車用 3.5V 至 42V、1.5A 降壓轉換器

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產品規格表

現在提供此產品的更新版本

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功能相同，但引腳輸出與所比較的產品不同
LMR43620-Q1 現行 具低 IQ 的車用 3-V 至 36-V ， 2-A 低 EMI 同步降壓穩壓器 Smaller footprint, higher efficiency, lower EMI, lower IQ and spread-spectrum.

TPS57140-Q1

現行
產品規格表 立即訂購

產品詳細資料

Iout (max) (A) 1.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Topology Buck Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 39 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000116
Iout (max) (A) 1.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Topology Buck Type Converter Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Soft Start Adjustable, Tracking, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 39 Rating Automotive Operating temperature range (°C) -40 to 125 Iq (typ) (A) 0.000116
HVSSOP (DGQ) 10 14.7 mm² 3 x 4.9 VSON (DRC) 10 9 mm² 3 x 3
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With Pulse-Skipping Eco-mode Control Scheme
  • 116-μA Operating Quiescent Current
  • 1.5-μA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start and Sequencing
  • Undervoltage and Overvoltage Power-Good Output
  • Adjustable Undervoltage Lockout Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • Supported by SwitcherPro Software Tool
    (www.ti.com/tool/switcherpro)

All trademarks are the property of their respective owners.

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Results:
    • Device Temperature Grade 1: –40°C to +125°C
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • 3.5-V to 42-V Input Voltage Range
  • 200-mΩ High-Side MOSFET
  • High Efficiency at Light Loads With Pulse-Skipping Eco-mode Control Scheme
  • 116-μA Operating Quiescent Current
  • 1.5-μA Shutdown Current
  • 100-kHz to 2.5-MHz Switching Frequency
  • Synchronizes to External Clock
  • Adjustable Slow Start and Sequencing
  • Undervoltage and Overvoltage Power-Good Output
  • Adjustable Undervoltage Lockout Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • Supported by SwitcherPro Software Tool
    (www.ti.com/tool/switcherpro)

All trademarks are the property of their respective owners.

The TPS57140-Q1 device is a 42-V, 1.5-A step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated output supply current to 116 μA. When the enable pin is in the low state, the shutdown current is reduced to 1.5 µA.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing or tracking. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.

A wide switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS57140-Q1 is available in a 10-pin thermally enhanced MSOP-PowerPAD package (DGQ) and a 10-pin VSON package (DRC).

For all available packages, see the orderable addendum at the end of the data sheet.

The TPS57140-Q1 device is a 42-V, 1.5-A step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load, regulated output supply current to 116 μA. When the enable pin is in the low state, the shutdown current is reduced to 1.5 µA.

Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow-start pin that can also be configured for sequencing or tracking. An open-drain power-good signal indicates the output is within 92% to 109% of its nominal voltage.

A wide switching-frequency range allows optimization of efficiency and external component size. Frequency foldback and thermal shutdown protect the part during an overload condition.

The TPS57140-Q1 is available in a 10-pin thermally enhanced MSOP-PowerPAD package (DGQ) and a 10-pin VSON package (DRC).

For all available packages, see the orderable addendum at the end of the data sheet.
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類型 標題 日期
* Data sheet TPS57140-Q1 1.5-A 42-V Step-Down DC-DC Converter With Eco-mode™ Control datasheet (Rev. D) PDF | HTML 2016年 2月 5日
Selection guide Automotive Infotainment EE Buck Converter/Controller Selection Guide (Rev. B) 2021年 4月 15日
Application note Passing CISPR25 Radiated Emissions Using the TPS54160-Q1 (Rev. A) 2019年 5月 23日
Application note Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 2015年 12月 8日
Application note TPS54xxx-Q1 and TPS57xxx-Q1 Devices EMC Performance Comparison Study 2015年 11月 17日
Application note TPS54xx0-Q1 and TPS57xx0-Q1 Pin Open and Short Test Results (Rev. B) 2015年 11月 3日
Application note Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications 2015年 3月 5日

設計與開發

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模擬型號

TPS57140-Q1 PSpice Transient Model

SLVM820.ZIP (86 KB) - PSpice Model
下載
模擬型號

TPS57140-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVMCV1A.ZIP (62 KB) - PSpice Model
下載
計算工具

TPS54-57XX0-CALC — TPS54xx0-Q1 and TPS57xx0-Q1 Design Calculation Tool

This worksheet is designed for use with Microsoft Excel 2002 or later. It intends to assist circuit designers in their day-to-day calculations

This worksheet includes two sections:

  • Recommendations: Calculates the maximum requirements for different components to guarantee the input voltage, output (...)
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電路圖: PDF
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Test report: PDF
電路圖: PDF
封裝 引腳 下載
HVSSOP (DGQ) 10 檢視選項
VSON (DRC) 10 檢視選項
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