首頁 電源管理 DC/DC 切換穩壓器 DC/DC 控制器
首頁
電源管理
DC/DC 切換穩壓器
DC/DC 控制器

TPS40428

現行

雙輸出、2 相位、可堆疊 PMBus 同步降壓無驅動器控制器

立即訂購
產品規格表

TPS40428

現行
產品規格表 立即訂購

產品詳細資料

Rating Catalog Topology Multiphase Iout (max) (A) 40 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 5 Vout (min) (V) 0.6 Control mode Voltage mode Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining Duty cycle (max) (%) 46 Iq (typ) (A) 0.018 Number of phases 2 Operating temperature range (°C) -40 to 125
Rating Catalog Topology Multiphase Iout (max) (A) 40 Vin (max) (V) 20 Vin (min) (V) 4.5 Vout (max) (V) 5 Vout (min) (V) 0.6 Control mode Voltage mode Features Adjustable current limit, Dynamic Voltage Scaling, Enable, Frequency synchronization, PMBus, Phase Interleaving, Power good, Pre-Bias Start-Up, Remote Sense, Synchronous Rectification, UVLO adjustable, Voltage Margining Duty cycle (max) (%) 46 Iq (typ) (A) 0.018 Number of phases 2 Operating temperature range (°C) -40 to 125
VQFN (RHA) 40 36 mm² (6 mm × 6 mm)
  • Smart Power Mode in Factory Default (Compatible with TI Smart Power Stage CSD95378B and Pin-for-Pin Equivalent to TPS40425 – Non-Smart Power Mode in Factory Default)
  • Single Supply Operation: 4.5 V to 20 V
  • VOUT from 0.6 V
  • Dual or Multi-Phase Synchronous Buck Controller
  • Individual High-Speed AVS Interface
  • Fast Transient Response
  • Stackable up to Four Phases
    • 2-, 3-, or 4-Phase Interleaved Phase Shifts
    • Accurate Current Sharing
  • PMBus Interface Capability
    • Margining Up/Down with 2-mV Step
    • Programmable Fault Limit and Response
    • ±0.8% VOUT
    • Accuracy Current Monitoring
    • ±3°C External Temperature Monitoring In Smart Power Mode
    • Programmable UVLO ON/OFF Thresholds
    • Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
  • On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
  • 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
  • Programmable ƒSW from 200 kHz to 1.5 MHz
  • Supports Pre-biased Output
  • Differential Remote Sensing
  • Synchronization to an Extermal Clock
  • OC/OV/UV/OT Fault Protection
  • 40-Pin, 6 mm × 6 mm, QFN Package
  • Smart Power Mode in Factory Default (Compatible with TI Smart Power Stage CSD95378B and Pin-for-Pin Equivalent to TPS40425 – Non-Smart Power Mode in Factory Default)
  • Single Supply Operation: 4.5 V to 20 V
  • VOUT from 0.6 V
  • Dual or Multi-Phase Synchronous Buck Controller
  • Individual High-Speed AVS Interface
  • Fast Transient Response
  • Stackable up to Four Phases
    • 2-, 3-, or 4-Phase Interleaved Phase Shifts
    • Accurate Current Sharing
  • PMBus Interface Capability
    • Margining Up/Down with 2-mV Step
    • Programmable Fault Limit and Response
    • ±0.8% VOUT
    • Accuracy Current Monitoring
    • ±3°C External Temperature Monitoring In Smart Power Mode
    • Programmable UVLO ON/OFF Thresholds
    • Programmable Soft-Start Time, Turn-On Delay, and Turn-Off Delay
  • On-Chip Non-Volatile Memory (NVM) to Store Custom Configurations
  • 0.6-V Reference Voltage with 0.5% Accuracy from –40°C to 125°C
  • Programmable ƒSW from 200 kHz to 1.5 MHz
  • Supports Pre-biased Output
  • Differential Remote Sensing
  • Synchronization to an Extermal Clock
  • OC/OV/UV/OT Fault Protection
  • 40-Pin, 6 mm × 6 mm, QFN Package

The TPS40428 device is a PMBus, synchronous buck, driverless controller. It operates in smart power mode with factory default settings, and it can operate in non-smart power mode after PMBus programing and power reboot. It can be configured for dual-output or 2-phase operation. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-. 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.

The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.

Using the PMBus standard, the TPS40428 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.

In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.

For all available packages, see the orderable addendum at the end of the data sheet.

The TPS40428 device is a PMBus, synchronous buck, driverless controller. It operates in smart power mode with factory default settings, and it can operate in non-smart power mode after PMBus programing and power reboot. It can be configured for dual-output or 2-phase operation. It is also stackable up to 4 phases to support load current as high as 120 A. Interleaved phase shift for 2-. 3-, or 4-phases reduce the input and output ripples therefore reducing input and output capacitance.

The wide input voltage range can support 5-V and 12-V intermediate supply buses. The 0.5% reference voltage satisfies the need of precision voltage to the modern ASICs.

Using the PMBus standard, the TPS40428 device can program reference voltage, fault limit, UVLO threshold, soft-start time and turn-on and turn-off delay.

In addition, the device implements an accurate measurement system to monitor the output voltages, currents and temperatures for individual channels.

For all available packages, see the orderable addendum at the end of the data sheet.
filter 尋找其它 DC/DC 控制器
下載 觀看有字幕稿的影片 影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。
檢視所有 5
重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TPS40428 Dual Output, 2-Phase, Stackable PMBus Synchronous Buck Driverless Controller with Adaptive Voltage Scaling (AVS) Bus datasheet (Rev. A) PDF | HTML 2014/7/22
應用說明 Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) 2021/4/7
應用說明 SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC 2016/2/22
類比設計期刊 MOSFET power losses and how they affect power-supply efficiency 2016/1/26
技術文章 Select the correct PMBus POL solution for your application PDF | HTML 2015/8/3

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

TPS40428EVM-594 — 具有 PMBus 介面的 TPS40428 EVM 雙輸出

TPS40428EVM 評估模組 (EVM) 讓使用者可評估 TPS40428。TPS40428 是一款 PMBus、同步降壓、無驅動控制器。它可以組態為雙輸出或 2相運作。  TPS40428EVM 旨在展示 TPS40428 在典型雙輸出應用中的表現，同時提供多個測試點以評估 TPS40428 的性能。

使用指南: PDF
支援產品和硬體
有庫存
限制：
??asset.out-of-stock-ti_zh_TW??
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。

支援產品和硬體
模擬型號

TPS40428 PSpice Transient Model

SLUM434.ZIP (247 KB) - PSpice 模型
支援產品和硬體
參考設計

PMP10896 — 適用於企業乙太網路交換器的完整 PMBus 電源系統參考設計

完整的 PMBus 電源系統，適用於 3 ASIC/FPGA 核心、DDR3 核心記憶體，以及高性能乙太網路交換器上常見的輔助電壓。

支援產品和硬體
參考設計

PMP11184 — 適用於 ASIC 處理器且具有 PMBus 的高效率、功率密度 1V/120A/30A/30A (4+1+1) 參考設計

PMP11184 是適用於高電流 ASIC 核心軌調節的晶片組解決方案。其採用 TPS53647 4 相位控制器用於 120A 高電流軌，並採用 DCAP+ 控制以實現快速暫態響應，同時採用 TI 專有的 AutoBalance，可實現緊密的穩定和動態相位對相位電流平衡。此外也運用 TPS40428 雙控制器，以實現雙 30A 軌。這兩種控制器都驅動 TI NexFET 智慧功率級，以實現高功率密度和效率。PMBus 功能及板載 NVM 可遙測輸出電壓、電流、溫度和功率，讓設計、配置與自訂變得更簡單。

支援產品和硬體
參考設計

PMP9131 — 具有 PMBus 介面的高密度 160A (210A 峰值) 四相 DC-DC 降壓轉換器參考設計

固定頻率電壓模式控制用於 CPU、記憶體和 ASIC 應用，其中需要可預測頻率和/或與外部時鐘同步。  四個高電流同步功率級提供這些應用所需的高電流和低損耗。多相也允許在指定切換頻率下進行輸出漣波抵銷和有效的高頻寬控制。PMP9131 著重於簡化電氣測試，以及透過 PMBus 介面「即時」更改的能力。板載偏壓電源和高速動態負載，完善功能齊全的測試介面。

支援產品和硬體
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VQFN (RHA) 40 Ultra Librarian
適用 TI 的評估品項標準條款與條件。

訂購與品質

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

以英文檢視所有論壇主題

內容係由 TI 和社群貢獻者依「現狀」提供，且不構成 TI 規範。檢視使用條款。

若有關於品質、封裝或訂購 TI 產品的問題，請參閱 TI 支援。​​​​​​​​​​​​​​

影片系列

觀看所有影片

影片