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AC/DC 和 DC/DC 轉換器 (整合式 FET)

TPS568231

現行

具 D-CAP3 控制功能的 3.8-V 至 17-V、8-A 同步降壓轉換器

立即訂購
產品規格表

TPS568231

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 3.8 Vin (max) (V) 17 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1200 Features Enable, Forced PWM, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 6 Iq (typ) (µA) 148 Duty cycle (max) (%) 90
Rating Catalog Operating temperature range (°C) -40 to 125 Topology Buck Type Converter Iout (max) (A) 8 Vin (min) (V) 3.8 Vin (max) (V) 17 Switching frequency (min) (kHz) 400 Switching frequency (max) (kHz) 1200 Features Enable, Forced PWM, Light Load Efficiency, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Synchronous Rectification Control mode D-CAP3 Vout (min) (V) 0.6 Vout (max) (V) 6 Iq (typ) (µA) 148 Duty cycle (max) (%) 90
VQFN-HR (RNN) 18 12.25 mm² 3.5 x 3.5
  • 4.5-V to 17-V input range without external bias
  • 3.8-V to 17-V input range with external bias
  • Supports 8-A continuous output current
  • Integrated 7.8-mΩ and 3.2-mΩ MOSFETs
  • 0.6-V ±1% reference voltage across a –40°C to 125°C junction range
  • 0.6-V to 5.5-V output voltage range
  • 146-µA low quiescent current
  • D-CAP3™ control mode for fast transient response
  • Supports ceramic output capacitors
  • Selectable fSW of 400 kHz, 800 kHz, and 1200 kHz
  • Selectable FCCM (forced continuous conduction mode) for tight output voltage ripple
  • Selectable Eco-mode™ (auto skip mode) for high light-load efficiency
  • Optional external 5-V bias for enhanced efficiency
  • Prebiased start-up capability
  • Adjustable soft start with a default 1.2-ms soft-start time
  • Power-good indicator to monitor output voltage
  • Two adjustable current limit settings with hiccup restart
  • Non-latched protections for UV, OV, OT, and UVLO
  • Pin-to-pin compatible with 8-A TPS568215, and 12-A TPS56C231 and TPS56C215
  • –40°C to 125°C operating junction temperature
  • 3.5-mm × 3.5-mm, 18-pin HotRod™ QFN package
  • 4.5-V to 17-V input range without external bias
  • 3.8-V to 17-V input range with external bias
  • Supports 8-A continuous output current
  • Integrated 7.8-mΩ and 3.2-mΩ MOSFETs
  • 0.6-V ±1% reference voltage across a –40°C to 125°C junction range
  • 0.6-V to 5.5-V output voltage range
  • 146-µA low quiescent current
  • D-CAP3™ control mode for fast transient response
  • Supports ceramic output capacitors
  • Selectable fSW of 400 kHz, 800 kHz, and 1200 kHz
  • Selectable FCCM (forced continuous conduction mode) for tight output voltage ripple
  • Selectable Eco-mode™ (auto skip mode) for high light-load efficiency
  • Optional external 5-V bias for enhanced efficiency
  • Prebiased start-up capability
  • Adjustable soft start with a default 1.2-ms soft-start time
  • Power-good indicator to monitor output voltage
  • Two adjustable current limit settings with hiccup restart
  • Non-latched protections for UV, OV, OT, and UVLO
  • Pin-to-pin compatible with 8-A TPS568215, and 12-A TPS56C231 and TPS56C215
  • –40°C to 125°C operating junction temperature
  • 3.5-mm × 3.5-mm, 18-pin HotRod™ QFN package

The TPS568231 is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS568231 has competitive features including a very accurate reference voltage, fast load transient response, and no requirement for external compensation, adjustable current limit, and both Eco-mode and FCCM operation modes for selection at light-load condition through configuration of MODE pin. To attain high efficiency at light load, Eco-mode can be selected. To support tight output voltage ripple requirement, FCCM can be selected. The TPS568231 operates from –40°C to 125°C junction temperature.

The TPS568231 is a small, high-efficiency, synchronous buck converter with an adaptive on-time D-CAP3 control mode. Because external compensation is not required, the device is easy to use and requires few external components. The device is well-suited for space-constrained data center applications.

The TPS568231 has competitive features including a very accurate reference voltage, fast load transient response, and no requirement for external compensation, adjustable current limit, and both Eco-mode and FCCM operation modes for selection at light-load condition through configuration of MODE pin. To attain high efficiency at light load, Eco-mode can be selected. To support tight output voltage ripple requirement, FCCM can be selected. The TPS568231 operates from –40°C to 125°C junction temperature.
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類型 標題 日期
* Data sheet TPS568231 3.8-V to 17-V Input , 8-A Synchronous Step-Down Converter datasheet PDF | HTML 2022年 10月 10日
White paper Understanding Functional Safety FIT Base Failure Rate Estimates per IEC 62380 and SN 29500 (Rev. A) PDF | HTML 2024年 4月 30日
Application brief Solving power design challenges in oscilloscope applications PDF | HTML 2023年 10月 31日
Certificate TPS568231EVM EU RoHS Declaration of Conformity (DoC) 2022年 9月 30日
EVM User's guide TPS568231 Step-Down Converter Evaluation Module User's Guide PDF | HTML 2022年 9月 26日

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開發板

TPS568231EVM — TPS568231 降壓轉換器評估模組

TPS568231 是需要非常低外部元件數的單路 D-CAP3™ 模式同步降壓轉換器。TPS568231 評估模組 (EVM) 是一款單同步降壓轉換器，可在 4.5-V 至 17-V 輸入範圍內提供 1.2-V 及 8-A 電流。本使用指南描述 TPS568231EVM 性能。
使用指南: PDF | HTML
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