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TPS54331-Q1

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具有 Eco-Mode™ 的汽车类 3.5V 至 28V、570kHz 固定频率 3A 降压转换器

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TPS62901 正在供货 采用 1.5mm × 2mm QFN 封装的 3V 至 17V、1A 高效率低 IQ 降压转换器 Next generation device

TPS54331-Q1

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产品详情

Iout (max) (A) 3 Vin (min) (V) 3.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 570 Switching frequency (max) (kHz) 570 Features Enable, Light Load Efficiency, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00011
Iout (max) (A) 3 Vin (min) (V) 3.5 Vin (max) (V) 28 Topology Buck Type Converter Switching frequency (min) (kHz) 570 Switching frequency (max) (kHz) 570 Features Enable, Light Load Efficiency, UVLO adjustable Control mode current mode Vout (min) (V) 0.8 Vout (max) (V) 25 Rating Automotive Operating temperature range (°C) -40 to 150 Iq (typ) (A) 0.00011
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Qualified for Automotive Applications
  • 3.5V to 28V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8V
  • Integrated 80 mΩ High Side MOSFET Supports up to 3A Continuous Output Current
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™ Control
  • Fixed 570kHz Switching Frequency
  • Typical 1µA Shutdown Quiescent Current
  • Adjustable Slow Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency Fold Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by SwitcherPro™ Software Tool (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • strong>For SWIFT™ Documentation, See the TI Website at www.ti.com/swift
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays,
      Peripherals, and Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5-V, 12-V and 24-V Distributed Power Systems

SWIFT, Eco-mode, SwitcherPro, PowerPAD are trademarks of Texas Instruments.
  • Qualified for Automotive Applications
  • 3.5V to 28V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8V
  • Integrated 80 mΩ High Side MOSFET Supports up to 3A Continuous Output Current
  • High Efficiency at Light Loads with Pulse Skipping Eco-mode™ Control
  • Fixed 570kHz Switching Frequency
  • Typical 1µA Shutdown Quiescent Current
  • Adjustable Slow Start Limits Inrush Currents
  • Programmable UVLO Threshold
  • Overvoltage Transient Protection
  • Cycle-by-Cycle Current Limit, Frequency Fold Back and Thermal Shutdown Protection
  • Available in Easy-to-Use SOIC8 Package
  • Supported by SwitcherPro™ Software Tool (http://focus.ti.com/docs/toolsw/folders/print/switcherpro.html)
  • strong>For SWIFT™ Documentation, See the TI Website at www.ti.com/swift
  • APPLICATIONS
    • Consumer Applications such as Set-Top Boxes, CPE Equipment, LCD Displays,
      Peripherals, and Battery Chargers
    • Industrial and Car Audio Power Supplies
    • 5-V, 12-V and 24-V Distributed Power Systems

SWIFT, Eco-mode, SwitcherPro, PowerPAD are trademarks of Texas Instruments.

The TPS54331 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.

The TPS54331 is a 28-V, 3-A non-synchronous buck converter that integrates a low RDS(on) high side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1 µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input under-voltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle by cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.
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类型 标题 下载最新的英语版本 日期
* 数据表 TPS54331-Q1 3-A 28-V Input, Step Down, SWIFT™ DC/DC Converter With Eco-mode™ 数据表 2010年 11月 8日
用户指南 TPS54331 Step-Down Converter Evaluation Module User's Guide (Rev. A) PDF | HTML 2021年 10月 8日

设计和开发

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评估板

TPS54331EVM-232 — TPS54331 28V 输入、3.3V 输出、3A 评估模块

TPS54331EVM-232 是一款组装完备且经过测试的电路，用于评估 TPS54331 同步降压 SWIFT™ 转换器。此 EVM 可将 3.5V 至 28V 的输入电压转换为 3.3V 的稳压输出电压，输出电流最高为 3A。开关频率在内部设置为 570kHz 的标称值。TPS54331 封装内部采用了高侧 MOSFET 以及栅极驱动电路。MOSFET 的低漏源导通电阻有助于 TPS54331 实现高效率 (91.6%)，即使在输出电流较高的情况下也能保持低结温。补偿组件位于集成电路 (IC) 外部，而外部除法器能实现可调节的输出电压。此外，TPS54331 (...)

用户指南: PDF | HTML
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仿真模型

TPS54331 Unencrypted PSpice Transient Model

SLVMCV6.ZIP (3 KB) - PSpice Model
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仿真模型

TPS54331-Q1 PSpice Transient Model

SLVM841.ZIP (64 KB) - PSpice Model
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封装 引脚 下载
SOIC (D) 8 查看选项
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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

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