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TPS54331 - 产品图解：
TPS54331-具有 Eco-mode 的 3.5V 至 28V 输入、3A、570kHz 降压转换器
TPS54331-转换器（集成开关）-DC/DC开关稳压器-电源管理
TPS54331-TPS54331 3-A, 28-V Input, Step Down DC-DC Converter With Eco-mode?
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TI产品 - TPS54331介绍

TPS54331 - 具有 Eco-mode 的 3.5V 至 28V 输入、3A、570kHz 降压转换器

TPS54331是TI德州仪器公司的一款转换器（集成开关）产品，TPS54331是具有 Eco-mode 的 3.5V 至 28V 输入、3A、570kHz 降压转换器，本站介绍了TPS54331的封装应用图解、特点和优点、功能等，并给出了与TPS54331相关的TI元器件型号供参考。

TPS54331 - 具有 Eco-mode 的 3.5V 至 28V 输入、3A、570kHz 降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • 3.5 to 28-V Input Voltage Range
  • Adjustable Output Voltage Down to 0.8 V
  • Integrated 80-mΩ High-Side MOSFET Supports up to 3-A Continuous Output Current
  • High Efficiency at Light Loads With a Pulse Skipping Eco-mode™
  • Fixed 570 kHz Switching Frequency
  • Typical 1-μA 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 or Thermally Enhanced SOIC8 PowerPAD™ Package
  • Supported by WEBENCH® Software Tool (www.TI.com/WEBENCH)
产品应用
  • 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
产品说明

The TPS54331 device 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 undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current-limit scheme, frequency foldback and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54331 device is available in an 8-pin SOIC package and 8-pin SO PowerPAD package that have been internally optimized to improve thermal performance.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
TPS54331SOIC (8)4.90 mm × 3.90 mm
SO PowerPAD (8)
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