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AC/DC 和 DC/DC 控制器 (外部 FET)

TPS53681

現行

具有 PMBus 和 NVM 的雙通道 6+2/5+3 D-CAP+TM 多相降壓控制器

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產品規格表

TPS53681

現行
產品規格表 立即訂購

產品詳細資料

Vin (min) (V) 4.5 Vin (max) (V) 17 Iout (max) (A) 300 Operating temperature range (°C) -40 to 125 Control mode D-CAP+ Topology Multiphase Rating Catalog Vout (min) (V) 0.25 Vout (max) (V) 2.8125 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Multiple Outputs, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining Iq (typ) (µA) 13000 Duty cycle (max) (%) 50 Number of phases 8
Vin (min) (V) 4.5 Vin (max) (V) 17 Iout (max) (A) 300 Operating temperature range (°C) -40 to 125 Control mode D-CAP+ Topology Multiphase Rating Catalog Vout (min) (V) 0.25 Vout (max) (V) 2.8125 Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Light Load Efficiency, Multiple Outputs, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining Iq (typ) (µA) 13000 Duty cycle (max) (%) 50 Number of phases 8
WQFN (RSB) 40 25 mm² 5 x 5
  • Conversion Input Voltage Range: 4.5 V to 17 V
  • 8-Bit DAC with Selectable 5 mV or 10 mV Resolution and Output Ranges from 0.25 V to 1.52 V or 0.5 to 2.8125 V for Dual Channels
  • Phase Configurations
    • Maximum (6-Phase + 2-Phase) or (5-Phase + 3-Phase)
    • Minimum (1-Phase + 1-Phase)
  • Driverless Configuration for Efficient High-Frequency Switching
  • Dynamic Output Voltage Transitions with Programmable Slew Rates via PMBus Interface
  • Frequency Selections with Closed-loop Frequency Control: 300 kHz to 1 MHz
  • Programmable Internal Loop Compensations
  • Configurable with Non-Volatile Memory (NVM) for Low External Component Counts
  • Individual Phase Current Calibrations and Reports
  • Dynamic Phase Shedding with Programmable Current Threshold for Optimizing Efficiency at Light and Heavy Loads
  • Fast Phase-Adding for Undershoot Reduction (USR)
  • Fully Compatible with TI NexFET™ Power Stage for High-Density Solutions
  • Accurate, Adjustable Voltage Positioning
  • Patented AutoBalance™ Phase Balancing
  • Selectable, 16-level Per-Phase Current Limit
  • PMBus™ System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
  • Low Quiescent Current
  • 5 mm × 5 mm, 40-Pin, QFN PowerPad™ Package
  • Conversion Input Voltage Range: 4.5 V to 17 V
  • 8-Bit DAC with Selectable 5 mV or 10 mV Resolution and Output Ranges from 0.25 V to 1.52 V or 0.5 to 2.8125 V for Dual Channels
  • Phase Configurations
    • Maximum (6-Phase + 2-Phase) or (5-Phase + 3-Phase)
    • Minimum (1-Phase + 1-Phase)
  • Driverless Configuration for Efficient High-Frequency Switching
  • Dynamic Output Voltage Transitions with Programmable Slew Rates via PMBus Interface
  • Frequency Selections with Closed-loop Frequency Control: 300 kHz to 1 MHz
  • Programmable Internal Loop Compensations
  • Configurable with Non-Volatile Memory (NVM) for Low External Component Counts
  • Individual Phase Current Calibrations and Reports
  • Dynamic Phase Shedding with Programmable Current Threshold for Optimizing Efficiency at Light and Heavy Loads
  • Fast Phase-Adding for Undershoot Reduction (USR)
  • Fully Compatible with TI NexFET™ Power Stage for High-Density Solutions
  • Accurate, Adjustable Voltage Positioning
  • Patented AutoBalance™ Phase Balancing
  • Selectable, 16-level Per-Phase Current Limit
  • PMBus™ System Interface for Telemetry of Voltage, Current, Power, Temperature, and Fault Conditions
  • Low Quiescent Current
  • 5 mm × 5 mm, 40-Pin, QFN PowerPad™ Package

The TPS53681 is a multiphase step-down controller with dual channels, built-in non-volatile memory (NVM), and PMBus™ interface, and is fully compatible with TI NexFET ™power stage. Advanced control features such as D-CAP+™ architecture with undershoot reduction (USR) provide fast transient response, low output capacitance, and high efficiency. The device also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at different loads. The device supports fast dynamic voltage transitions with adjustable slew rate. In addition, the device supports the PMBus communication interface for reporting the telemetry of voltage, current, power, temperature, and fault conditions to the systems. All programmable parameters can be configured by the PMBus interface and can be stored in NVM as the new default values to minimize the external component count.

The TPS53681 device is offered in a thermally enhanced 40-pin QFN packaged and is rated to operate from –40°C to 125°C.

The TPS53681 is a multiphase step-down controller with dual channels, built-in non-volatile memory (NVM), and PMBus™ interface, and is fully compatible with TI NexFET ™power stage. Advanced control features such as D-CAP+™ architecture with undershoot reduction (USR) provide fast transient response, low output capacitance, and high efficiency. The device also provides novel phase interleaving strategy and dynamic phase shedding for efficiency improvement at different loads. The device supports fast dynamic voltage transitions with adjustable slew rate. In addition, the device supports the PMBus communication interface for reporting the telemetry of voltage, current, power, temperature, and fault conditions to the systems. All programmable parameters can be configured by the PMBus interface and can be stored in NVM as the new default values to minimize the external component count.

The TPS53681 device is offered in a thermally enhanced 40-pin QFN packaged and is rated to operate from –40°C to 125°C.
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技術文件

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類型 標題 日期
* Data sheet TPS53681 Dual-Channel (6-Phase + 2-Phase) or (5-Phase + 3-Phase) D-CAP+™ Step-Down Multiphase Controller with NVM and PMBus™ datasheet (Rev. B) PDF | HTML 2019年 1月 9日
Application note Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) 2021年 4月 7日
Application note Selection Considerations for Output Capacitors of Multiphase Volt. Reg. Part 1 PDF | HTML 2020年 4月 1日
Technical article Minimize the impact of the MLCC shortage using D-CAP+™ control mode PDF | HTML 2019年 4月 5日
Application note D-CAP+TM Control for Multiphase Step-Down Voltage Regulators for Powering Microp 2019年 1月 13日
Technical article How to use PMBus power solutions for NXP QorIQ processors PDF | HTML 2018年 5月 9日
Application note NVM Programming for VR13 Power Controllers PDF | HTML 2018年 5月 4日
Selection guide DC/DC Buck Controller Solutions Selection Guide 2018年 2月 6日
EVM User's guide Using the TPS53681EVM 2017年 12月 18日
Technical article The D-CAP+™ Modulator: Evaluating the small-signal robustness PDF | HTML 2017年 11月 15日
Technical article Powering high-current Broadcom networking processors in Ethernet switches PDF | HTML 2017年 9月 6日
User guide TPS53681 Technical Reference Manual 2017年 4月 25日
User guide Using the Fusion Digital Power Designer for TPS536xx VR13 Multiphase Solutions 2016年 12月 16日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

TPS53681EVM-002 — 適用於具有 PMBus 介面的 D-CAP+™ 降壓式控制器的雙通道 (6+2/5+3) 評估模組

The TPS53681EVM evaluation module allows users to assess the operating characteristics of the TPS53681 controller with the CSD95490 smart power stages in a low voltage, high current, step-down point of load (POL) application with the configuration, control and monitoring functionality of the (...)

使用指南: PDF
TI.com 無法提供
應用軟體及架構

FUSION_DIGITAL_POWER_DESIGNER — 數位電源軟體

Fusion Digital Power™ 圖形使用者介面 (GUI) 軟體用於配置和監控選擇的德州儀器數位電源控制器和序列器/健康狀態監控器。該應用程式使用 PMBus 協定，透過 TI USB 轉接器經由序列匯流排與裝置通訊。
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應用軟體及架構

FUSION_MFR_GUI — Fusion Digital Power 製造工具

The Fusion Digital Power Manufacturing Tool (aka MFR GUI) is a Graphical User Interface used to download firmware, upgrade firmware, configure, calibrate and test .

The MFR GUI supports the same devices as Fusion Digital Power Designer software.  This tool is typically used in manufacturing (...)

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參考設計

PMP22165 — 適用於 Xilinx Versal 適應性計算加速平台 (ACAP) 參考設計的電源

此參考設計因應 Xilinx Versal 適應性計算加速平台 (ACAP) 的需求，包含一個系統軌道的電源管理積體電路 (PMIC)，加上一個多相控制器和功率級，用以支援更高電流的處理器負載。關鍵輸出的板載動態負載允許進行 Xilinx 嚴苛的電源需求測試。PMP22165 與 TPS53681 EVM 是經過測試的解決方案，其元件性能符合 Versal 最常見用例一和三的處理器需求。
Test report: PDF
電路圖: PDF
參考設計

TIDA-050020 — 適用於 Xilinx® Virtex Ultrascale+™ FPGA 的 PMBus™ 電壓穩壓器參考設計

This reference design uses the TPS53681 multiphase controller and CSD95490Q5MC smart power stages to implement a high-performance design suitable for powering the 0.85-V, 200-A, VCCINT rail of a Xilinx™ Ultrascale+™ FPGA. The secondary output of the controller can then be used to power (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01512 — 適用於 NXP QorIQ LS2085A/88A 處理器的 PMBus 電壓穩壓器參考設計

TIDA-01512 uses the TPS53681 multiphase controller and CSD95490Q5MC Smart Power Stages to implement a high-performance design suitable for powering NXP QorIQ Communications Processors.

The dual outputs of the controller target the 60-ATDC, 1.0-V core rail with a four-phase design and a 30-ATDC, (...)

Design guide: PDF
電路圖: PDF
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