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AC/DC 和 DC/DC 转换器（集成 FET）

TPS57040-Q1

正在供货

具有 Eco-Mode™ 的汽车类 3.5V 至 42V、500mA 降压转换器

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数据表

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open-in-new 比较替代产品
功能与比较器件相同，但引脚排列有所不同
LMR34206-Q1 正在供货 4.2V 至 42V、0.6A 超小型同步降压转换器 Spread spectrum and wettable flank QFN packaging.

TPS57040-Q1

正在供货
数据表 立即订购

产品详情

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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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 TPS57040-Q1 0.5-A 42-V Step-Down DC-DC Converter With Eco-mode™ 数据表 (Rev. D) PDF | HTML 2014年 12月 23日
应用手册 Passing CISPR25 Radiated Emissions Using the TPS54160-Q1 (Rev. A) 2019年 5月 23日
应用手册 Interfacing TPS57xxx-Q1 and TPS65320-Q1 Family Devices With Low Impendence Exter 2015年 12月 8日
应用手册 TPS54xxx-Q1 and TPS57xxx-Q1 Devices EMC Performance Comparison Study 2015年 11月 17日
应用手册 TPS54xx0-Q1 and TPS57xx0-Q1 Pin Open and Short Test Results (Rev. B) 2015年 11月 3日
应用手册 Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications 2015年 3月 5日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

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

SLVM815A.ZIP (77 KB) - PSpice Model
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计算工具

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 (...)
支持的产品和硬件

支持的产品和硬件

产品
AC/DC 和 DC/DC 转换器（集成 FET）
TPS54240-Q1 — 具有 Eco-Mode™ 的汽车类 3.5V 至 42V、2.5A 降压转换器 TPS54260-Q1 — 具有 Eco-Mode™ 的汽车类 3.5V 至 60V、2.5A 降压转换器 TPS57040-Q1 — 具有 Eco-Mode™ 的汽车类 3.5V 至 42V、500mA 降压转换器 TPS57060-Q1 — 具有 Eco-Mode™ 的汽车类 3.5V 至 60V、500mA 降压转换器 TPS57140-EP — TPS57140-EP 具有 Eco-mode™ 控制方案的 1.5A、42V 直流/直流降压转换器 TPS57140-Q1 — 具有 Eco-Mode™ 的汽车类 3.5V 至 42V、1.5A 降压转换器 TPS57160-Q1 — 具有 Eco-Mode™ 的汽车类 3.5V 至 60V、1.5A 降压转换器
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封装 引脚 CAD 符号、封装和 3D 模型
HVSSOP (DGQ) 10 Ultra Librarian
VSON (DRC) 10 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

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
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

视频