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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS57040-Q1

現行

具 Eco-Mode™ 的車用 3.5V 至 42V、500mA 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

open-in-new 比較替代產品
功能相同，但引腳輸出與所比較的裝置不同
LMR34206-Q1 現行 4.2V 至 42V、0.6A、超小型同步降壓轉換器 Spread spectrum and wettable flank QFN packaging.

TPS57040-Q1

現行
產品規格表 立即訂購

產品詳細資料

Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 39 Iq (typ) (µA) 116 Duty cycle (max) (%) 100
Rating Automotive Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 0.5 Vin (min) (V) 3.5 Vin (max) (V) 42 Switching frequency (min) (kHz) 100 Switching frequency (max) (kHz) 2500 Features Enable, Frequency synchronization, Light Load Efficiency, Power good, Soft Start Adjustable, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 39 Iq (typ) (µA) 116 Duty cycle (max) (%) 100
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
      Ambient Operating Temperature Range
    • 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 a 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/Sequencing
  • Undervoltage and Overvoltage Power-good Output
  • Adjustable Undervoltage Lockout Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • Supported by SwitcherPro™ Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • 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 a 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/Sequencing
  • Undervoltage and Overvoltage Power-good Output
  • Adjustable Undervoltage Lockout Voltage and Hysteresis
  • 0.8-V Internal Voltage Reference
  • Supported by SwitcherPro™ Software Tool
    (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)

The TPS57040-Q1 device is a 42-V 0.5-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, input supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.5 µA, when the enable pin is low.

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/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 efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS57040-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).

The TPS57040-Q1 device is a 42-V 0.5-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, input supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.5 µA, when the enable pin is low.

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/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 efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.

The TPS57040-Q1 is available in a 10-pin thermally enhanced MSOP PowerPAD™ package (DGQ) and a 10-pin SON package (DRC).
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類型 標題 日期
* Data sheet TPS57040-Q1 0.5-A 42-V Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. D) PDF | HTML 2014年 12月 23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

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模擬型號

TPS57040-Q1 Unencrypted PSpice Transient Model Package (Rev. A)

SLVM815A.ZIP (77 KB) - PSpice Model
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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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產品
AC/DC 和 DC/DC 轉換器 (整合式 FET)
TPS54240-Q1 — 具 Eco-Mode™ 的車用 3.5V 至 42V、2.5A 降壓轉換器 TPS54260-Q1 — 具 Eco-Mode™ 的車用 3.5V 轉 60V、2.5A 降壓轉換器 TPS57040-Q1 — 具 Eco-Mode™ 的車用 3.5V 至 42V、500mA 降壓轉換器 TPS57060-Q1 — 具 Eco-Mode™ 的車用 3.5V 至 60V、500mA 降壓轉換器 TPS57140-EP — 具有 Eco-mode&trade 控制的 TPS57140-EP 1.5-A 42-V 降壓 DC-DC 轉換器 TPS57140-Q1 — 具 Eco-Mode™ 的車用 3.5V 至 42V、1.5A 降壓轉換器 TPS57160-Q1 — 具 Eco-Mode™ 的車用 3.5V 至 60V、1.5A 降壓轉換器
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HVSSOP (DGQ) 10 Ultra Librarian
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